TOPIC 3

Classify and Count Data


OVERVIEW

In Topic 3, your child will sort up to 10 objects into categories. After sorting, your child will count the number of objects in each group and then compare those numbers.

SORT OBJECTS

Your child will sort pictures of objects into two groups. One group will be objects that have a certain attribute (or characteristic), and the other group will be objects that do NOT have that attribute.

2 groups, labeled Hair and No Hair.

Your child will circle objects with a given attribute (such as “has feathers”) and mark an X over objects that do not have that attribute.

6 animals: turkey, snake, bluebird, rooster, frog, hen, worm. Dots prompt a circle around turkey and an X on snake.

COUNT, RECORD, AND SORT

Count and Record the Number in Each Group Your child will count the number in each group (having an attribute and not having that attribute) and record the number for each group in a chart. Recording can be done by first making tally marks in the chart and then writing the numerals.

A picture shows 6 birds in water and 5 out of water. There are two two-column charts next to the picture.

Sort the Categories Your child will compare the unequal numbers of objects in the two groups they were sorted into and identify which group is greater in number or which is less in number. Your child will circle the group that is less in number and explain how they know.

A group of 4 blue and 7 not blue crayons.

When groups of sorted objects are equal in number, your child will circle both numbers.

A chart has 5 tally marks each for corn and peas. There are dot prompts to write and circle a 5 under both corn and peas.


CONNECT THE MATH

You can connect the math in this topic to everyday experiences. Have your child sort objects at home into groups that have and do not have attributes you decide on. For example: clothes that have buttons/clothes that do not have buttons; toys that have wheels/toys that do not have wheels; crayons that are broken/crayons that are not broken. Your child can count the objects (up to 10) in each group and tell which group is greater in number or less in number than the other group. You can also sort the objects yourself and have your child guess the categories.