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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