Kindergarten · Math · K.OA.A.3, K.OA.A.4, K.OA.A.1
Addition Lesson Plan for Kindergarten
A ready-to-teach addition lesson for Kindergarten, built around adding with pictures, sums within 5 and 10, understanding 'putting together'. Print the plan, print the practice pages, and you are set.
Approximately 45 minutes
Learning objective
- Practice addition facts with step-by-step guided exercises
- Build addition skills aligned to Kindergarten math standards
- Apply number sense and problem-solving to addition facts activities
Materials
- Decompose numbers
- Making 10 with objects
- Adding with number lines
- Addition equations
- Counting plus 1 more - Birds
- Add objects (up to 10) - Bees
- Pencils, and whiteboard space for the modeled examples
Lesson steps
1. Warm up together (5 min)
Open with a quick count-around or number talk that touches addition. Ask students where they have seen addition outside of math class. You are listening for who already has the vocabulary and who does not, so keep it light and let several students answer.
2. Model it (I do) (10 min)
Work two examples of addition on the board, thinking out loud the whole way. Say the quiet parts: what you notice first, which step you do next, and why. Deliberately make one small error on the second example and let the class catch it.
3. Practice together (we do) (10 min)
Work three more problems as a class. Ask a different student to supply each step rather than the whole answer. If a step stalls, drop back to concrete objects or a drawing before moving on.
4. Independent practice (you do) (15 min)
Hand out "Decompose numbers". Students work independently while you circulate. Note who is fluent, who is counting on fingers, and who has not started, because that grouping drives tomorrow's small group.
5. Close the loop (5 min)
Pull the class back. Ask one student to explain a problem they got right and one to name something that is still confusing. End on the confusion, not the success, so students learn that naming a gap is normal.
Check for understanding
Collect the practice pages and sort them into three piles: fluent, developing, and not yet. Any student in the third pile needs addition retaught in a small group before the class moves on.
Differentiation
Extra support. Students who stall: pull them into a small group and rebuild addition with concrete materials or a simpler text before asking for the written work again. Do not send the page home as homework, it will just rehearse the misunderstanding.
Extension. Students who finish early: ask them to write their own addition problem for a partner to solve, then check the partner's work. Creating a problem is harder than solving one and it surfaces whether they really understand addition.
Skills covered in this lesson
Addition facts · Single-digit addition · Addition Word Problems · Decompose Numbers Under 20 · Making 10 · Addition Vertical · Addition Up to 5 · Decompose Numbers · Adding Objects To 20 · Make Ten Objects · Adding Pictures · Adding Objects
