📊Math G4 L7.12 Outline- Operations with Decimal Fractions (For Teacher- Do Not Publish)

For full lesson outline, see Advantage Math.

Standards:

  • 4.NF.6-Use decimal notation for fractions with denominators 10 or 100. 

Objectives:

  • Math Objective: Students will be able to solve word problems by adding or subtracting fraction decimal numbers.
  • Language Objective: Students will be able to explain how they solved a problem with fraction decimal numbers.

Vertical Alignment:

  • 3.NBT.2- Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
  • 4.NF.6- Use decimal notation for fractions with denominators 10 or 100. 
  • 5.NBT.3- Read, write, and compare decimals to thousandths.

Lesson Outline:

🚀Launch:

  • Students will solve a word problem by adding decimals and find the sum. 
  • Discuss how to set up a decimal addition problem. Most students will not find it natural to align the decimals. 
  • To make remote, record yourself explaining this part of the lesson or do a Zoom/Teams call and teach this part.   

🤔Explore:

  • Students will be asked to solve word problems with decimals. 
  • Some questions you can ask:
    • How could money help with using decimals in a variety of operations?
    • What is the order of place values you should look at make sure your numbers align before you add or subtract?

💬Discuss A:

  • Students will discuss how to add a decimal and a fraction together and to find the sum. 

✅Exit Ticket: Students will demonstrate what they have learned.  

Differentiation:

  • Challenge: For students who need an additional challenge, invite them to create their own word problems with decimals. If necessary, give them one of the following parameters for the numbers in the problem:
    • tenths plus tenths
    • hundredths plus hundredths
    • tenths plus hundredths
    • tenths subtract tenths, or
    • hundredths subtract hundredths
  • Struggling: 
    • For students who are struggling, require that they use a manipulative or mat (such as base ten blocks or a hundredths grid) as they solve each problem so that they are using a pictorial or physical model of each number they are working with.