# Standard: N3

Compute fluently and make reasonable estimates

## A Cat Quandary

In this lesson, children will use objects, pictures and numbers to play out scenarios that involve addition and subtraction.

## Groovy Buttons

In this lesson, children will read a book about Pete the Cat. As Pete loses the buttons from his shirt, the children will count down from four to zero.

## Hot Cocoa Math

In this lesson, children will count the marshmallows in their hot chocolate and write the number on their hot chocolate mugs.

## Jack and the Beanstalk

In this lesson, children will estimate and then measure how many beans fit in the giant’s hand and compare it to how many beans fit in their own hands.

## Jump in the River

In this lesson, children will explore addition of whole numbers.

## LEGO Math

In this lesson, children will practice counting and adding whole numbers using LEGO blocks.

## Monkey Mania

In this lesson, children will use subtraction by acting out the words to the accompanying book and song.

## Mouse Count

In this lesson, children will count sets of mice and add sets of mice together up to 10 and subtract from the set of mice, from 10 down to zero.

## Pinch a Penny

In this lesson, children will use a die to subtract pennies until the winner “breaks the bank.”

## Quack and Count

In this lesson, children will use manipulatives to form different groups that make up the number seven.

## Sandwich Shop Game

In this lesson, children look at a menu and count out sandwich pieces to build sandwiches and then calculate the prices of their sandwiches.

## Subtraction Bowling

In this lesson, children will subtract the number of “bowling pins” that are knocked down and calculate the remaining pins left standing, using a base of 10.

## Take a Trip with Rooster

In this lesson, children will predict, sort, add and subtract the various animals that Rooster meets on his trip.

## Yahtzee

In this lesson, children will add the numbers of two dice and cross out the sum.