## Wednesday, April 19, 2017

### FREE MATH LESSON - “Area Model Multiplication 2X2 - Error Analysis”

by Katie Minor

Error analysis problems are a great way to check your students' understanding of a concept. Instead of just solving many of the same problems on a worksheet, they have to use their critical thinking skills to determine where, if anywhere, the example student went wrong. This forces them to think outside of the box and develop a deeper understanding of the WHY behind the procedure and processes.

This activity is a quick check of the students' understanding of steps for using the area model to solve multiplication problems. I used this as a ticket out the door but you could also use it in centers or in whole-group instruction. I have copied the activity three times on one sheet to save paper :).

Aligns with the standard: NBT.5: Multiply a whole number of up to four digits by a one-digit whole number, and multiply two two-digit numbers, using strategies based on place value and the properties of operations. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.

Looking for some more error analysis products for fourth grade? Check out...

♦ Multiplication: Area Model Error Analysis

♦ Multiplication: Partial Products Error Analysis

♦ Multiplication: Standard Algorithm Error Analysis

♦ Division: Partial Quotients Error Analysis - No Remainders

♦ Division: Standard Algorithm Error Analysis - No Remainders

♦ Subtraction Error Analysis: Standard Algorithm

♦ Addition Error Analysis: Standard Algorithm

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