August 10, 2018
|
by Lily Jones

Lesson plan

Fact Family Trees

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Do you need extra help for EL students? Try the Fact Family Triangles pre-lesson.
EL Adjustments
Grade
Do you need extra help for EL students? Try the Fact Family Triangles pre-lesson.

Students will be able to write related facts.

The adjustment to the whole group lesson is a modification to differentiate for children who are English learners.
EL adjustments
(5 minutes)
  • Write the following problems on the board:
    • 3 + 4 = 7
    • 4 + 3 = 7
    • 7 - 4 = 3
    • 7 - 3 = 4
  • Ask students to turn to a partner and share what they notice about the facts.
(10 minutes)
  • Tell students that the facts on the board are in the same fact family. Fact families are math facts that are related. Fact families use the same numbers but can use both addition and subtraction.
  • Draw seven circles on the board, three in one color and four in another. Walk through visualizing each of the facts you listed on the board, showing how three plus four is seven, seven take away three is four, etc.
  • Explain that this fact family is made up of the numbers 3, 4, and 7. Write the numbers above the facts on the board.
  • Draw a tree shape with the numbers 3, 4, 7 at the top of the tree and the facts in the trunk. Tell students that sometimes people make family trees to show their relatives. Fact family trees can show how the same numbers can come together to make related facts!
(5 minutes)
  • Draw a new tree on the board. Write the numbers 5, 1, 6 at the top.
  • Have students turn to a partner and share as many facts that they can think of that use all three numbers. Tell students there are four possible facts to come up with.
  • Ask students to share the facts they thought of with the class. Write the four related facts in the tree trunk on the board.
(20 minutes)
  • Hand out the paper to each student. Have them draw trees with a fact family in them. Support students as needed to start with the right three numbers. Allow them to guess and check as needed to realize how to come up with numbers that work together.
  • When students finish, hand out the Frosty Fact Families: Addition and Subtraction worksheets for students to complete.

Support:

  • Have students work with a partner to create a fact family tree.
  • Give students the three numbers to work with when creating their fact family trees.

Enrichment:

  • Have students create multiple fact family trees.
  • Challenge students to use bigger numbers.
(5 minutes)
  • Ask students to post their fact family trees around the room.
  • Have students circulate around the room to look at each other's work while you assess student understanding.
(5 minutes)
  • Call on a couple students to reflect on the work they saw around the room.
  • Ask students to share what they learned about fact families.

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