Section References
Lesson 14 One More
Lesson 15 One Less
Lesson 25 Measurement
Lesson 26 More Measurement
Lesson 27 Measuring Length
Lesson 28 More Measuring
Lesson 31 Pennies, Nickels, and Dimes
Lesson 37 One Half
Lesson 38 Numbers 11-19
Lesson 39 Numbers 20-29
Lesson 42 Ordinal Position
Lesson 49 Introducing Addition
Lesson 50 More Addition
Lesson 51 Introducing Subtraction
Lesson 52 More Subtraction
Lesson 53 Addition and Subtraction
Lesson 54 Add and Subtract
Lesson 57 Division Readiness
Lesson 58 Counting by Inference
Lesson 59 Multiplication Readiness

Software
James Discovers Math , Broderbund Software, Inc. 1995
cd mac/windows

1.) Students each have a bowl of 10 cubes, tiles or any other counting object you use. Students will roll a die or spin a spinner numbered 1-5. They take that many objects out of their bowl. They will count how many are left and tell the teacher/ helper what they did. For adding, have students start with an empty bowl and roll the die or spin the spinner, then add that many objects to the bowl. Again they roll the die or spin the spinner and add that number. Students then count the total number objects in the bowl. 

2.) For this activity students will work with partners, cubes or tiles, and paper bags. They will work with numbers 1-10. One student fills the paper bag with the selected number of cubes or tiles. The other reaches in and takes out some, showing how many have been removed. Both predict how many they think are left. Then they check their predictions. They count how many were left in the bag. For those able, they can record the equation.

1.) For addition, individual students use a die or spinner numbered 1-5, a bowl, and some cubes or tiles. The student rolls or spins and then adds that number of cubes or tiles to the bowl and tells the teacher/ helper what number was added. The student will roll or spin again and add that many more to the first group. The student will answer: "How many more do you have to put in the bowl? How many are in the bowl all together now? What is the term for putting more in?" 

2.) For subtraction, working individually, students will need a die or spinner numbered 1-5, a bowl and some cubes or tiles. They begin with 10 cubes or tiles in the bowl. They will subtract, or remove, objects when they roll the die or spin the spinner. After they have a number, they will 'take away' that many cubes or tiles. Students will answer: "How many cubes or tiles are left? What is the term for taking away?"