Kindergartners discover addition — putting two groups together to find how many in all — by joining objects and counting the total, the very first step into math operations.
Students will be able to…
If you have 3 red apples and 2 green apples, how many apples do you have all together? When we put groups together, we ADD!
Project this and change the two groups of dots. Watch them join into one bigger group — that’s adding!
Tap any phase to open the teacher moves and student actions.
3 red apples and 2 green apples — how many all together?
Children explore.
Play together.
Children create.
Share an add.
Aligned to the Common Core State Standards for Mathematics (Kindergarten).
Represent addition with objects, fingers, drawings, or sounds.
Solve addition word problems within 10.
Fluently add within 5.
Understand the relationship between numbers and quantities.
Preview the three formative checks. Tap “Sample answer” to see what mastery looks like — hide them before you print for students.
Have families put groups of snacks or toys together and count “how many in all” — like 2 grapes and 3 grapes make 5. A printable adding mat is in the Early Learning library.
Tap a card to flip it, then rate whether you knew it. Built from this lesson’s vocabulary.
A quick self-check with instant feedback, drawn from this lesson’s key terms.
A print-and-go review sheet with a built-in answer key. Tap “Show answer key” to reveal answers, or print the clean version for students.