K-5 friendly lesson
One small step at a time.Read the idea, try the activity, and celebrate each win as you go.
Make arrays to model multiplication
Multiply rows and columns! 🌟 A fun way to see multiplication is to build a grid of items called an array.
Do this: Read the concept below, then try the quiz or activity.
Lesson 30 of 220
Concept
An array is just a grid of items arranged in rows and columns.
Rows go side-to-side (across). Columns go up-and-down.
When you multiply the number of rows by the number of columns, you get the total number of items! Try building a 4 × 5 array below to see it in action.
Try it
Let's build an array!
Instructions: Use the sliders below to build a 4 × 5 array (4 rows and 5 columns).
Question 1: How many total items are in a 4 × 5 array? * Answer: ___