Lesson Plan: Adding Tens on a Number Line Mathematics • 1st Grade

This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to add multiples of ten to a two-digit number using a number line with numbers up to 100.

Objectives

Students will be able to

  • use a number line to add a multiple of ten to a two-digit number,
  • choose which number to start from when adding tens on an open number line,
  • solve word problems using an open number line.

Prerequisites

Students should already be familiar with

  • tens and ones,
  • adding ones to two-digit numbers.

Exclusions

Students will not cover

  • three-digit numbers.

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