4.NBT.B.5

Re-Circuit

Experience Awakening - Our open-world educational game

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Game Info for Teachers

COMBINED RATING

4.1 Stars

TEACHERS (68)

4.4

STUDENTS (14899)

3.8

LENGTH

19 Minutes

GRADES

CAPABILITIES

iPad Support

Spanish Language Support

Text-to-Speech Support

Description

The robot's circuit is all in a mess, help it by opening it up and repairing its circuit. In this game, students will 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.

Vocabulary Words

factors

product

addends

sum

decompose

value

partial product

area model

expanded form

distributive property

Instructions

Play through this interactive game to learn about Multiply Four By One And Two By Two Digit Numbers. Suitable for Grade 3, Grade 4, Grade 5.

Main Concepts

Understand that algorithms for multiplication and division are abbreviations for reasoning about quantities.

Decompose factors into base-ten units and apply the distributive property, reduce multiplication computations to single-digit multiplications and products of numbers with multiples of 10, of 100, and of 1000.

Multiply two two-digit numbers using strategies based on place value and the properties of operations.

Use diagrams and arrays of the multiplication to develop understanding of multiplication.

Compute products of one-digit numbers and 2-, 3-, and 4-digit numbers with regrouping.

Discussion Questions

Before the Game

How can you write 25 in expanded form? What strategy would you use to estimate the product of 12*15? How can we quickly multiply numbers that are multiples of 10? Can you multiply 3 times 15?

After the Game

Would this method work if we had factors with three place values? How would we set up our grid then? How about if we were multiplying 3 factors together? How can an area model help us solve multiplication problems in our head? How will the area model strategy work with three digit numbers?