## Reflection: Homework Introduction: Discovering an array - Section 5: Homework: Array

These scanned in graph paper pages with the 15 facts do not pick up the cross lines on the graph paper, but we can still see the student's work very clearly. When homework was brought to me the next day, I took a few minutes to have them evaluate their work. What I saw was my two lowest students master the work, 15 Facts Arrays Struggling Student Mastered! Struggling student mastered this very well.and one high end student who did not make columns correctly. He was counting the second column as number 1, forgetting that his listing of the rows actually made his first column.This student made the mistake of counting his columns incorrectly.

I included a document for the 15 math facts along with the multiplication chart where I derived my idea for the assignment in case you want to use it. I often use this activity to get students to see how many facts they really do know. It is a revelation for some since memorization can be really overwhelming for them.15 hard facts.

Overall, I was really pleased with their ability to get the concept of row x column. This is a really important concept as we lay some foundations under them for higher level concepts like area and ordered pairs. We keep these samples in our math file for later reference.

Homework: The next day...

# Introduction: Discovering an array

Unit 4: Concepts of Multiplication
Lesson 1 of 12

## Big Idea: Students find arrays within the school building, use counters to create arrays to describe how they find the product of given factors and assess themselves using a rubric.

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Standards:
Subject(s):
Math, Number Sense and Operations, array, multiplication models, multiplication, Operations
65 minutes

### Mary Ellen Kanthack

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