The sorting garden
Group objects by a rule, count the groups, and compare their sizes.
Explore this lesson →5 practice questions · Optional read aloud · Thinking pad
Let’s understand the idea.
- Choose a sorting rule: color or shape. Use that rule for every token.
- Count each group. Changing the sorting rule can change the groups, but no objects disappear.
- Arrange the categories from the fewest objects to the most. Equal counts can go in either order.
Try it. Change it. Explain it.
Open the lesson to use its pictures and controls. In How it works, connect the picture to the idea. In Play & discover, change the quantities and notice what stays the same. In Your turn, answer questions and use the explanation to check your reasoning.
You can ask for help, draw on the thinking pad, or listen to the question and answer options. Progress distinguishes independent work from work completed with help.
Let’s try it →Curriculum connection
Kindergarten · K.MD · US Common Core
This lesson is mapped to these standards. A completed activity is practice evidence, not a claim of mastery. Content is checked against the linked official standards and its mathematical models are tested.