Lesson Plan: Adding Ones to Teen Numbers | Nagwa Lesson Plan: Adding Ones to Teen Numbers | Nagwa

Lesson Plan: Adding Ones to Teen Numbers Mathematics

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to use different strategies to add a single-digit number to a teen number to give a total within 20.

Objectives

Students will be able to

  • use models to help add a single-digit number to a teen number,
  • partition the teen number addend to help add a single-digit number,
  • count on from the teen number addend to help add a single-digit number,
  • solve word-based problems involving addition of single-digit numbers to teen numbers.

Prerequisites

Students should already be familiar with

  • teen numbers,
  • adding numbers to 10,
  • modeling additions using objects/counters/blocks.

Exclusions

Students will not cover

  • adding to numbers greater than 19,
  • totals greater than 20.

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