# Number Sense Interventions ## Lesson 1 | Learning Goals | Materials | | |--------------------------------------------------|---------------------------------------------------|------------------------------------------------------| | Establish behavior boundaries | COPY | Teacher Tip: It is important to gather and organize materials before each lesson to save valuable time. | | Count to 10 orally | Cardinality Chart | | | Build numbers 1,2 using blocks | Subitizing Circle Cards (#1-12) | | | Number recognition 0-2 | Dot Chart for 2 | | | Count and sequence to 2 | Partner Dot Card for 2 | | | Count to 2 on fingers | Number Sentence Cards: 1+1=2, 2-1=1, 1-1=0, 2-2=0 | | | Make numbers 1,2 on fingers | Lesson 1 Activity Sheet | | | Recognize quantities 1,2 | | | | Partners of 2 (1/1) | | | | Story problems and number sentences: 2 family | | | | Perform number operations on fingers | | | | Write the numerals 0-2 | | | | Connect the quantity to numerals 0-2 | | | | Solve written number sentences: 1 and 2 families | | | | | PREPARE | | ### Establishing Behavior Boundaries **Say:** When we work together, I expect you all to carefully listen and do your best. Okay? When I am talking, you should be listening. And when I call on one of you to speak, we will all listen to you. That is how we show respect for each other. It is important that we respect each other so we can all do our best. ### Counting Warm-Up **Say:** Let’s count around the group this time. Each of you will say the next number when it is your turn. I will start… 1. ### Magic Number Activities (Magic Number is 2) **MATERIALS:** Cardinality Chart, 3 interlocking blocks in a plastic bag Lay the Cardinality Chart on the table and say, This is a number chart. It has the numbers 1–10 across the bottom in a list. Run your finger across the numbers. Give descriptions as you go through the numbers: - Point to the number 1 and say, The first number is 1. Hold up 1 block and say, This is 1 block. How many blocks do I have? Wait for a response. - Point to the number 2 and say, The next number is 2. Hold up 2 blocks—one in each hand—and say, These are 2 blocks. 1, 2. How many blocks do I have? Wait for a response. ### Number Sense Interventions Lesson 1 **Say:** Now it is your turn! We are going to write a big number 2 in the air. Follow my finger. Ready? Copy me! ### Partners of 2 Activities **MATERIALS:** Pencil, Partner Dot Cards for 2, Dot Chart for 2, Number Sentence Cards **Partners of 2 (1 + 1) Using Dot Chart for 2** - Put down the Dot Chart with 2 dots. Orient it horizontally. - Say, See, here are 2 dots. 1, 2. Touch the dots as you count. I can break them into 2 parts with my pencil. Separate the 2 dots using a pencil. ### Review Put the 1 + 1 = 2, 2 - 1 = 1, and the 2 - 2 = 0 cards next to each other above the Partner Dot Card for 2. Say, Let's say these 1 more time. 1 plus 1 equals 2, 2 minus 1 equals 1, and 2 minus 2 equals 0. Gesture using the Partner Dot Card for 2 as you say each number sentence. ### Story Problems **MATERIALS:** 2 of each: pencils, erasers, crayons, blocks; Number Sentence Cards Give a pencil to a child sitting nicely and say, (Child) has 1 pencil. His/her teacher gave him/her 1 more pencil (give the child another pencil). How many pencils does (Child) have now? **Hold up the 1 + 1 = 2 card** and say, That is right because 1 pencil plus 1 pencil equals 2 pencils. Point to the numbers as you say them. ### Number Sentences on Fingers **MATERIALS:** Number Sentence Cards **Say:** Watch me do this using my fingers. 1 + 1 = 2 2 - 1 = 1 **Written Numbers** **MATERIALS:** Lesson 1 Activity Sheet, pencils, crayons ### Cardinality Chart | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |---|---|---|---|---|---|---|---|---|---| --- --- ### Dot Chart for 2 - **Note:** See Chapter 1, Finger Counting, for a trajectory of solving number sentences on fingers.