Unit 3- How Many of Each? How Many in All? 

During this unit, the students will be working on developing strategies for adding and subtracting numbers by counting on or back, solving problems that involve adding more than two numbers, and finding many different combinations for the same number. They will also begin to work with tens and ones as we represent the teen numbers as a group of ten plus a group of ones. Throughout this unit, they will be thinking about how to use equations to record our work. They will also be counting larger quantities and reading and writing larger numbers. 

Activities to Try at Home 

How Many Am I Hiding? Put 5–12 small objects in your hand. Give your child a chance to determine how many you have. Then hide some in your other hand and show your child what is left. Now ask, “How many am I hiding?” Encourage your child to explain his or her thinking. After playing a few rounds with the same number, you can change the total number and start again. 

Start With/Get To Ask your child to select a number to “Start With” and another number to “Get To.” Count with your child from the “Start With” number to the “Get To” number. During this unit, we will be focusing on numbers 1–120. 

Write the Numbers As an extension of “Start With/Get To,” children write the numbers they are counting. You can also challenge your child to write the numbers in order as high as they can count. 

Counting Activities In class, students are counting sets of up to about 60 objects. With your help, your child can count even higher. Together, count sets of objects around the home, such as spoons, pennies, or collections of small toys. In school, children will trace their feet and count how many small items (e.g., beans, tiles, pennies) fit inside the outline. At home, your child may like to trace your foot and then count how many beans or pennies fit inside.