Addition and Subtraction to 20

Reading and Materials List

Required Books

Lesson 2

• If You Were a Plus Sign by Trisha Speed Shaskan

Lesson 6

• If You Were a Minus Sign by Trisha Speed Shaskan

Materials

Common Materials

• abacus (kit)
• counters (kit)
• fine point dry-erase marker (kit)
• laminated number line (kit)
• whiteboard (kit)
• dice (kit)
• number cards (kit)
• Interactive Notebook
• scissors
• set of double-nine dominoes (kit)
• pennies, nickels, and dimes
• glue
• beans or pennies
• colored pencils or markers

Lesson 2

• small snack foods* (2.3 - optional)
• small sticky notes (kit)
• 2 plates

Lesson 3

• addition flashcards (kit)
• colored pencils
• egg carton
• laminated number bond (kit)
• large number strip from Unit 4

Lesson 4

• paper plates (kit)
• glue or glue stick* (4.Introduction - optional)
• construction paper or card stock

Lesson 5

• counters* (5.4 - optional)
• deck of playing cards (kit)
• construction paper (kit)
• abacus* (5.4 - optional)
• index cards (kit)
• sidewalk chalk (kit)
• small rocks, pebbles, or coins* (5.3 - optional)
• stapler or tape

Lesson 6

• egg carton from Lesson 3

Lesson 7

• play dollar bills (kit)

* - denotes an optional material that may or may not be used