Reflection: Adjustments to Practice The double number line - Section 3: Using the Double Number Line


Using the double number line for percents was wonderful.  However, it will be a good idea to teach them 10% of a number before using this tool.  I did a quick mini-lesson on how to find 10% of a number.  I wrote on the board the following:

10% of 10 = 1

10% of 20 = 2

10% of 30 = 3

10% of 40 = 4

Then, I asked them if they noticed a pattern.  They said that you just drop the zero.  So I explained that this is actually a movement of the decimal, but they were correct.  Then I asked them a few more 10% of a number questions and they were able to get it right. Since this lesson is about utilizing the double number line, I did not speak to them about any other numbers except those that were multiples of 10.

  Percents and the double number line
  Adjustments to Practice: Percents and the double number line
Loading resource...

The double number line

Unit 2: 6th grade tool box
Lesson 3 of 7

Objective: SWBAT use the double number line to solve problems.

Big Idea: The double number line will help students figure out problems that involve two quantities.

  Print Lesson
Math, Number Sense and Operations, double number lines, ratios, percent
  85 minutes
dopuble number line 92bc5a230f0e6ac48c7ace6eacca0c08
Similar Lessons
Part to Part Ratios Using Tape Diagrams and Tables
6th Grade Math » Rates and Ratios
Big Idea: There are multiple ways to represent proportional relationships and reason about solutions to problems.
New Haven, CT
Environment: Urban
Carla Seeger
Review 3: Who's faster? Comparing Ratios & Rates
6th Grade Math » Review Unit
Big Idea: Who's faster? What is the better deal? How do you know? Students apply their knowledge of ratios and rates in order to determine how they relate to each other.
Somerville, MA
Environment: Urban
Andrea Palmer
Adding and Subtracting Integers
Algebra I » Numeracy
Big Idea: Students will conceptualize the addition and subtraction of integers with a number line and counter chips.
Washington, DC
Environment: Urban
Noelani Davis
Something went wrong. See details for more info
Nothing to upload