Sunday, March 29, 2026

Introduction to Fractions week 3

Work with Fractions continued! (Here are notes from week 1 and week 2.)

Mon - Restaurant Simulation


Tue - Coins as Fractions & Decimals

    play Race to a Dollar / Race to a Hundred Dollars
    FREE download from Aimee Salazar's blog post (scroll to bottom)

    again we used the pretend bills, real coins, and my 10-sided dice

    add Coins as Fractions & Decimals to MLB


    bonus question #1: how would we add a dollar coin to this chart?
    bonus question #2: how would we add a half cent to this chart?


Wed - Operations with Fractions


Thu - Convert Improper Fractions to Mixed Numbers

    Fractions Group 1 -
    Penguin Trek (review fractions of a group) and Create Your Own Fraction Problems (adding fractions with common denominators)

    Fractions Group 2 -
    do Crack the Code! (multiplying fractions by a whole number, simplifying "top heavy" improper fractions to mixed numbers)

    note: all three of these activities are FREE on TpT

    write about what we did today in the MLB along with new wonderings


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Saturday, March 28, 2026

Philosophy week 3

The discussions about Reality continued! Previous posts in this series:


This week we considered the new spider species, Taczanowski waska.

I began by reading a section of Zombie Makers: True Stories of Nature's Undead by Rebecca L. Johnson.

Side note: This is a sensational book! Here are all the species included

    Chapter 1: A Fungus Among Us

    Zombie Maker: Fungus, Entomophthora muscae
    Zombie Victim: Housefly, Musca domestica
    North America and Europe

    Zombie Maker: Fungus, Ophiocordyceps unilateralis
    Zombie Victim: Carpenter Ant, Camponotus leonardi
    Southeast Asia


    Chapter 2: The Worms Crawl In, The Worms Crawl Out

    Zombie Maker: Hairworm, Paragordius tricuspidatus
    Zombie Victim: Cricket, Nemobius sylvestris
    Europe

    Zombie Maker: Guinea Worm, Dracunculus medinensis
    Zombie Victim: Human, Homo sapiens
    Africa


    Chapter 3: Can We Eat the Babyitter?

    Zombie Maker: Jewel Wasp, Ampulex compressa
    Zombie Victim: Cockroach, Periplaneta americana
    tropical parts of Africa, South Asia, and the Pacific Islands

    Zombie Maker: Parasitoid Wasp, Glyptapanteles
    Zombie Victim: Moth Caterpillar, Thyrinteina leucocerae
    North and South America


    Chapter 4: Going Viral

    Zombie Maker: Rabies Virus
    Zombie Victim: Mammals
    Every country except Australia and New Zealand


    Chapter 5: Try Me, You'll Like Me

    Zombie Maker: Roundworm, Myrmeconema neotropicum
    Zombie Victim: Giant Gliding Ant, Cephalotes atratus
    rain forests of Central and South America

    Zombie Maker: Protozoan, Toxoplasma gondii
    Zombie Victim: Rats and other warm-blooded animals
    Everywhere cats are found


For this lesson, I read them the Ophiocordyceps unilateralis chapter (victim: carpenter ants). Then we reviewed Kings Play Chess On Fine Grains of Sand, also known as Linnaean classification.

    It is easiest to explain this using our own species Homo sapiens!

    Kingdom: Animals

    Phylum: Vertebrates

    Class: Mammals

    To further explain Order: Primates
    we like to play Primate Bingo

    To further explain Family: Hominids
    we like to play the Hunters and Gatherers Simulation Game

    Genus: Homo

    Species: sapiens


After that quick review, I read them a New York Times article from Mar 20:


Now, on to the Philosophy discussion:

Did Taczanowski waska exist before it was discovered?

AAR - Yes, it was alive before it was discovered, that one. If it wasn't, it would have to be just made. It was there before that second he found it.

FR - Yes. Things like that need lots of time to evolve. And that seems like it's been doing it for a while, playing dead. So yes I think it did.

Z - You can't. You can't prove it.

AAR - Unless there's footprints or something. But it's not heavy enough to make footprints.

CB - I don't think that it was real. You can't prove that it's there before it's been spotted or made. How do you know if it's there if no one ever saw it before he spotted it?

EF - Yes, it existed. It has to be made before someone finds it. Because if it's made after, well, if someone finds eggs, that's one way that you could. But if something already hatches and you find that, it has to be made before.


If we are sure that something exists because we have the evidence, was it real before we had the evidence?

CB - You can't, there's no way to prove that it's real if you don't have evidence before you found it.

Z - Yes, but, if you have evidence now and you didn't have evidence before, is it not real before?


FR is making the argument that that evolution takes time. How do we know that the rules of evolution are the same for this species?

CB - We don't have the evidence of that. We don't have a report of when it was actually here before they found it, and figured it out. We don't know when it came to Earth.

FR - Evolution takes time. Look at the simple things; those still took thousand of years to evolve. If they took years and years to evolve, what about this spider? It's a lot more difficult. Plus it's mimicking an organism that's been infected. That takes time to build a disguise like that for wildlife. It can't just be around for like 20 days or something. It had to be around for at least a few decades at least.

AAR - It can't just pop into nature. So many other creatures took so long to evolve. So this creature must have taken a long time to evolve too. It can't just go in just like that. It needs time to evolve those tentacles. It can't just see an organism dying and be like, oh that's a good idea and then tentacles pop out. It can't just do that.

Z - How would this species know that this fungus exists? It wouldn't know how to mimic it, if it didn't know that that fungus existed and what it looked like and what it did to the other spiders. (That's not evidence to me. I'm just arguing that.)



Here's the Wikipedia page for this new spider. From that page, "Arachnologist Nadine Dupérré subsequently located another specimen, collected in Bolivia in 1903, in the holdings of a museum in Germany."

So our evidence for its existence goes back to 1903. Did it exist before then? Can you explain in what way it existed before it was discovered?


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Friday, March 27, 2026

Using Up Felt Scraps

For 20 years I have been buying pure wool felt from Waldorf-y places, first Magic Cabin and now A Child's Dream. Pure wool felt is absolutely gorgeous to work with... and quite expensive (currently $3.65 per 8 x 12 inch sheet).

In short, we don't waste pure wool felt!

I recently found Trixi Symonds (https://sewasoftie.com) and absolutely love her patterns for little felt creatures. They are so sweet and simple to sew, and the perfect stash-busting project! She calls her little creations Zenkis.

Millicent Monster was our first Zenki. It was an adorable Halloween craft.


And then we made Spirit Owls!


Trixi just released a new pattern book for 10 charming Australian animals and it's on sale right now at Etsy as a digital download. These little animals are all the rage in the classroom! Here's a peek at Zac's Handwork basket:

"Poppy Possum" in progress


The Australia animal patterns are kangaroo, wombat, koala, possum, magpie, platypus, crocodile, pobblebonk (Eastern Banjo Frog), emu, and fly.


This weekend I also purchased Trixi's book, The Zenki Way: A Guide to Designing & Enjoying Your Own Creative Softies, which will give me ideas on how to help the children create their own Zenki-style patterns.


Trixi has a mailing list, in case you want to keep up with new books in her pattern series. I admit I'm very tempted by the Kandinsky-inspired Zenkis and will probably add it to my Art History resources another year. That project will be an ideal use for tiny scraps as well! We never throw away any piece of pure wool felt, no matter how tiny it is or how strangely-shaped.


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Tuesday, March 24, 2026

Giant Microbes

The Science Club topic for this entire school year is Human Anatomy and Physiology. This is such a rich subject! Here is what we have done so far:

    week of

    Sep 8 - The Twelve Senses
    Sep 15 - The Twelve Senses, cont.
    Sep 22 - The Twelve Senses, cont.
    Sep 29 - The Brain

    Oct 6 - The Nervous System
    Oct 13 - The Nervous System, cont.
    Oct 20 - The Circulatory System
    Oct 27 - The Circulatory System, cont.

    Nov 3 - The Lymphatic System (special guest)
    Nov 10 - The Skeletal System
    Nov 17 - Assembling a Skeleton (special guest)

    Dec 1 - The Skeletal System, cont.
    Dec 8 - The Muscular System
    Dec 15 - The Muscular System, cont.

    Jan 5 - The Digestive System
    Jan 12 - The Excretory System
    Jan 19 - Food Guide Pyramid / The Teeth

    Feb 2 - Forensic Anthropologist (special guest)
    Feb 9 - The Respiratory System
    Feb 16 - Childhood Polio Survivor (special guest)

    Mar 9 - review The Digestive System & The Respiratory System
    Mar 16 - The Immune System
    Mar 23 - The Immune System, cont.



Next week we will be wrapping up the Immune System with one more set of activities. Then it's on to the Integumentary System and the Endocrine System! We will have more special guests this year... including a student from the Mortuary Science department at SIU... and even a field trip to John A Logan College to see their SYNDAVER aka "THE SYNTHETIC CADAVER"!


To kick off our study of the Immune System we began with rabies:


Today we learned about plagues like cholera, typhoid, smallpox, and the Black Death.


Then they got to make WANTED posters for different plague-causing microbes from my set of Plagues from History.


I absolutely love the Giant Microbes! In addition to that set (which includes Smallpox, Black Death, Cholera, Typhoid Fever, and Spanish Flu), I also have



Tuberculosis



Salmonella



Penicillin



Chicken Pox


Did You Know?

Illinois has a state microbe. It is Penicillium rubens, which was found quietly growing on a cantaloupe -- in a grocery store in Peoria -- in 1944!

from the IDNR website on Illinois state symbols:

    On May 31, 2021, the Illinois General Assembly approved Penicillium rubens as the official State Microbe. The designation serves to honor Peoria and the National Center for Agricultural Utilization Research, whose scientists with the help of local residents in the 1940s discovered a method of mass-producing penicillin. Penicillin is the most widely used antibiotic in the world. The methods were developed in time to provide penicillin to treat Allied soldiers wounded during the invasion of Normandy, France, which began June 6, 1944, and helped to revise pharmaceutical drug production.

    The mold strain was found on a cantaloupe at a local store, not far from the laboratory in Peoria. The scientists discovered that when grown in vats with special nutrients, this Penicillium mold strain produced more penicillin than the Penicillium strain originally discovered by Alexander Fleming in 1928.


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Saturday, March 21, 2026

Introduction to Fractions week 2

My notes for the second week of our March topic. Week 1 notes are here.

Mon - Fractions of a Number

    review fractions of a group using Groups of Sea Animals worksheet from Math Investigations book 3 by Susan Gardner & Silvia Acosta (also published as Looking into Math book 3, ISBN 0-8388-2355-6)

    OUT OF PRINT
    but I found it on the Internet Archive!


    noice that 1/2 was intuitive and easy but they had trouble understanding 1/3 and 1/4 of a group of animals

    explore this idea using the Fourths Board and BINGO chips

    Cuisenaire Rods demonstration (1/4 of 12 is 3, 1/4 of 16 is 4)

    write about what we did today in the MLB along with new wonderings


Tue - Puddle Question

    an activity to explore and articulate mathematical thinking!
    Puddle Question (grade 3 book, investigation #5: Paper Chains)

    for more on this book series, see my previous post Puddle Questions: Assessing Mathematical Thinking

    it's amazing how different everyone's chains were!


Wed - Reading a Ruler, Simplifying Fractions

    do Sharing Pizza worksheet from Math Investigations book 3

    think of the cut line as representing "out of" like the equals sign represents "is the same as"

    notice that there are fractions in the score on our daily Math Facts (for example, 70/100)

    can you have a fraction that is more than a whole?

    do counting exercise with a pile of sixths pieces (we used 24)

    notice that you can write fractions such as 12/6, 18/6, and 24/6 and also that we have made several whole circles

    explain terms "numerator" and "denominator"

    are there fractions on a ruler? pass out rulers and look at the marks between the whole inches

    do How to Read a Ruler ($1.99 on TpT) exercise with 16ths from the Metal Squares: 9 Plates and replace pieces with equivalent fractions

    8/16 is the same as 4/8, 2/4, and one half

    write about what we did today in the MLB along with new wonderings


Thu - Build-an-Animal

    continue to work with measurement by playing the Build an Animal Measurement Game (FREE on TpT)

    meet with Ms. Renee and let her know if you'd like to continue going at this pace or move faster (+, -, x, ÷ fractions)



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Friday, March 20, 2026

The Big Muddy Monster - Is It Real?

Last week we looked at "real" with a chat about The Velveteen Rabbit; this week, inspired by the recent flap of Bigfoot sightings in Ohio, we turned our analysis to cryptids.

I started by asking the children to list words with < crypt > in them:

crypt

cryptic

crypto

cryptocurrency

cryptozoology

cryptid


SWI connection! Affixes are a group of word parts that includes prefixes, suffixes, and connecting vowel letters. We see the connecting vowel letter
< o > easily in < cryptocurrency > and < cryptozoology >!

(The < o > is preserved in < crypto > even though it connects to nothing, because < crypto > is a clip of a longer word.)


I read pp.4-13 from Land & Sea Monsters by Daniel Quinn. This book is a little out of date monster-wise (1971) but its initial section still holds up.

Note: I have three other books in my cryptid collection: The Very True Legend of the Mongolian Death Worms by Sandra Fay, Snowbound Secrets (Bhutan) by Virginia Kroll and Nívola Uyá, and Monstrous: The Lore, Gore, and Science behind Your Favorite Monsters by Carlyn Beccia.


What kinds of evidence would it take for you to be convinced that Bigfoot was real?

FR - Bigfoot is a large hairy bear basically. I can see that being real. I guess you can call a unicorn just like a goat and a horse.

Z - I would need to see Bigfoot behind bars, moving.

EO - I don't know how Bigfoot works but I'm imagining it kind of like a bear with its habits of scratching its back aginst the tree. If some of its fur got caught in the bark and someone found it and sent it to a lab and they confirmed that it wasn't actually a bear or something else with brown fur... A scientific test that is very reliable. Or somebody somehow caught it.

Z - I was reading a Childcraft book about legends and it was footprints but then the scientists looked at them and there's a kind of bear that has really big feet (but that's in Europe).


How do you know that somebody really saw what they thought they saw?

The group agreed that you would need to capture it, fur (DNA evidence), or "a really legit photo." But then someone pointed out, "Now with AI, I don't know if any photos or videos can be trusted."


Is there a kind of visual evidence that you could truly trust, besides your own actual experience?

FR - I don't know if I would trust myself, even with my own experience! In my bedroom, I tend to make something seem like it's really there. When I was little but even now, I tend to do it for fun sometimes just if I get bored. I can't trust myself to believe myself that I saw something.


I have woken up from dreams that I was sure really happened. Has that ever happened to you? [nods of agreement] What was it about it that made it seem so real?

EO - Once I was awake and looking out my window, and there were these bright red eyes staring back at me and they were floating towards me and it seemed so real.


How do you know you were awake and not asleep?

EO - It just seems like something I can tell. I'm 99% sure that I was awake and that my head was trying to scare me. I imagine things that aren't there that really scare me. It felt so real because I was awake.

AAR - Sometimes your brain just puts more detail in a dream and tries to make you believe in this one thing more than other dreams. The night my dad died, there was this floating lantern thing and it was just floating around and around in the darkness. And then I woke up and knew that my dad died. My mom says that might have been my daddy coming to visit me. The weirdest dreams can feel real in the moment but then you realize it wasn't actually real. But in the moment it feels real because nothing else is happening.

FR - Your brain makes you believe that something is real because it's putting pictures of things that you've seen -- like a basement or movie characters -- all in this one thing. It makes it like it's happening. It wants you to believe that there's actual creatures that have been impossible to find.


Next, I read them the June 26, 1973 police report from a local "sighting" of an unexplained creature, since nicknamed "The Big Muddy Monster."

https://murphysboro.com/wp-content/uploads/2023/04/Big-Muddy-Monster-Merged-File.pdf


Does reading this change your thoughts about what counts as evidence?

FR - Yes, just for this once. True, people have made up police reports. But for something like this, and people are still so sure about it. Many times over the years. And a trained animal. People from different timing that didn't even know it was there, a child that didn't know it, and an animal which is trained to not back down from searching things. It's pretty convincing.

AAR - I think since there are multiple people who saw it, there's evidence (the slime), the cops. Why would the cops lie? They did report the slime and that the monster must have had some kind of slime on it. Maybe the monster lived in the water by the pond. I think it might be real. There's a lot of evidence that it's probably real. If this creature has been reported again and then the exact same thing happened, slime that when you rubbed it put black on your fingers, dogs backing down...

Z - They could have done more. I think they should have taken the slime to the lab. Or searched to see where the kid said there was a white ghost, and see if there was slime there. When the dog wouldn't go into the barn, it's possible that the creature was visible to the dog but invisible to the cops. It couldn't be seen by people that were older than say 20.

EO - It has changed what I think, the animal and the child. The child seemed like it would be a younger child. I'm just going to say 5, I'm guessing. A 5 year old probably wouldn't understand how to get influenced from somebody else about there being a monster. Would not understand that. Seeing a "ghost" would not be influenced by anybody else. And then the dog cannot be influenced. They don't understand human speech enough to be influenced by that. I'm wondering if it was up in the rafters. Dogs have a special sound that they can hear that humans can't. Something the monster was making that the dog can hear but humans can't. There seem to be many signs that it's white. Other Bigfoot sightings are brown. I wonder if they are relatives.

CB - The slime could be sensitive to the temperature change. When he rubbed it between his fingers he warmed it up. And it would turn different colors.


Lastly, I read them a portion from https://www.bigfootohio.org that talks -- very charmingly -- about being rigorous in your methodology and being your own worst skeptic ("The Researcher's Creed: A Guide to Honest Bigfoot Investigation"). And then I shared some of the recent news items from Ohio and we examined whether the evidence there was convincing.

Fun fact: the collective noun for a group of Bigfoot sightings is a "flap."


Cluster of Bigfoot sightings reported in Northeast Ohio
newsnationnow.com

    “It’s normal for there to be Bigfoot sightings all over the United States, but it’s not normal to have multiple sightings in a small area within a short number of days,” said Jeremiah Byron, host of the “Bigfoot Society Podcast.”

    Byron has interviewed over 1,000 people on the subject and told NewsNation local affiliate WJW in Cleveland that these claims seem sincere.


Ohio Bigfoot Sighting Surge | Flap or Fakery?
reddit.com

    As of this video being made, 8 sightings have been reported over the past 5 days in Northeast Ohio, including Mantua, Garrettsville, Headwaters, Windham, Streetsboro, Newton Township, and Lake Milton (Portage County and Trumbull County). But is this a legitimate Bigfoot flap? Or just clever fakery? All the reports come from anonymous sources, all reports are going to the Bigfoot Society podcast, and the reports gave gone viral very quickly, hitting the local news, social media, and even the mainstream media.


Bigfoot in Ohio? Reports of 'sightings' are going viral on social media
wlwt.com

    An account called Bigfoot Society began posting about apparent encounters, with each video getting more and more views.

    The account even has a map of where the 8 recent sightings were made, all in northeast Ohio over the past week or so.

    The reports however weren't backed up with any photo or video evidence.

    Reported "sightings" aren't new for the region.

    In fact, an annual festival is held in Ohio dedicated to Bigfoot.


Bigfoot sightings light up the gloomiest corner of Ohio — residents report dogs are ‘shaking in fear’
nypost.com

    At least seven Bigfoot sightings have been reported across northeast Ohio since Friday, according to the minds at the Bigfoot Society, with most of the encounters coming between Akron and Youngstown in Portage County.

    One of the latest alleged incidents happened Monday evening in Streetsboro, with the witness insisting she hadn’t seen any of the other reports of the sightings.

    “They were passing the Tinkers Creek area when a 6-and-a-half-foot lean, brown bigfoot appeared in their lane but going against the flow of traffic,” the Bigfoot Society’s Jeremiah Byron said.

    “They were so close that the witness said that her daughter could have reached out and hit the Bigfoot with her arm.”

    “She was so freaked out she couldn’t turn around and go back — she is not a Bigfoot person,” Byron added.

    Surprising no one, perhaps, none of the Bigfoot spotters have managed to snap a photo — despite the ubiquity of high-resolution cameras on modern smartphones.

    And no reports have been made with local police, either, according to the Canton Repository.


Do you think that there is enough evidence here?

The children were very disappointed! They were all talking over each other in their frustration:

Why didn't she reach out with her arm, grab the fur and bring the fur to an office or something?

It's no proof just to say.

No pictures, no nothing.

It's all from the same source (Jeremiah Byron), the people are anonymous, no police reports.

Why didn't she take a picture, why didn't she grab some fur, why is it just word of mouth?



Update - Mar 23, 2026

    Today we followed up on this by reading The Nantucket Sea Monster: A Fake News Story by Darcy Pattison. The events in this story took place in 1937. It makes for a great student conversation on the rights -- and responsibilities -- that come along with having a free press!


This post contains affiliate links to materials I truly use for homeschooling. Qualifying purchases provide me with revenue. Thank you for your support!