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5th Grade · Math · 5.NBT.A.1, 5.NBT.A.4, 5.NBT.B.7

Decimals Lesson Plan for 5th Grade

A ready-to-teach decimals lesson for 5th Grade, built around decimal place value to thousandths, powers of 10, comparing, ordering and rounding decimals, the four operations with decimals, word problems, metric conversions and unit review. Print the plan, print the practice pages, and you are set.

Approximately 45 minutes

Learning objective

  • Read, write and expand decimals to thousandths
  • Explain place value patterns and use powers of 10
  • Compare and order decimals to thousandths

Materials

Lesson steps

  1. 1. Warm up together (5 min)

    Start concrete: fold a strip of paper, share something unequally, and ask whether it was fair. decimals lands far better after a fairness argument than after a definition.

  2. 2. Model it (I do) (10 min)

    Draw decimals before you write it. Show the same quantity as a picture and as notation side by side, and name which one students should reach for when stuck.

  3. 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. 4. Independent practice (you do) (15 min)

    Hand out "Decimal Place Value to Thousandths". 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. 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 decimals retaught in a small group before the class moves on.

Differentiation

Extra support. Students who stall: pull them into a small group and rebuild decimals 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 decimals 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 decimals.

Skills covered in this lesson

Place value and comparing decimals · Rounding decimals and number lines · Adding and subtracting decimals · Multiplying decimals · Dividing decimals · Mixed decimal operations and review · Decimal word problems and measurement

Practice pages for this lesson

6 items, 7 printable pages that match the independent-practice step.

Questions teachers ask about teaching decimals

What decimal skills do 5th graders need?
5th graders read, write, compare and round decimals to thousandths (CCSS 5.NBT.A.3 and 5.NBT.A.4), understand place value patterns and powers of 10 (5.NBT.A.1 and 5.NBT.A.2), and add, subtract, multiply and divide decimals to hundredths (5.NBT.B.7).
What order should I teach decimals in 5th grade?
Start with place value to thousandths, then comparing, ordering and rounding. Move to adding and subtracting, then multiplying and dividing. Finish with word problems, mixed operations and a unit review. The subtopics on this page follow that order.
How do I help my child place the decimal point correctly?
Estimate first. Rounding each number to a whole number gives a ballpark answer, so 4.8 x 3.1 should be about 15, which rules out 1.488 and 148.8.
Is there an answer key for each worksheet?
Yes. All 55 sheets have an answer key, and the two page sheets have a two page key.

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