Algebraic Peg Board

This is one of the materials I purchased for my homeschool co-op because I knew the Montessori Lower Elementary classroom at my old school had it...

Algebraic Peg Board

Pegs for the Algebraic Peg Board

Algebraic Peg Board Activity Set 1 (squaring numbers)

Algebraic Peg Board Activity Set 2 (square roots)

Patterns for Square Root

But I've yet to find a good way to work it in to the lessons I give here. So I'm researching options for the Algebraic Peg Board. Here's what I found!

Factoring
sample problem: find the factors of 18

< factor >
< factory >
< benefactor >

Finding LCM on Peg Board
sample problem: find the lowest common multiple of 9 and 15

Multiplication on Peg Board - Single Digit Multiplier
sample problem: 423 x 6

Multiplication on Peg Board - Double Digit Multiplier
sample problem: 1457 x 23

Multiplication on Peg Board - Triple Digit Multiplier
sample problem: 2548 x 321

Squaring Binomials
sample problem: 34² = (30 + 4)²

Real Square to Symbolic Square on Peg Board
sample problem: 14² = (10 + 4)² = 10² + 2 (10 x 4 ) + 4²

a² + 2ab + b²

Squaring Trinomials
sample problem: 243² = (200 + 40 + 3)²

Square Root of a Number Any Size Using the Peg Board
sample problem: find the square root of 625

Note: In the Waldorf scope & sequence, advanced 7th graders learn the algorithm for finding the square root of any size number! Jamie York walks you through teaching the algorithm step-by-step in his middle school book.

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