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### Overview

Marble Math is a game on www.abcya.com that allows students to practice addition with manipulatives. Students can use the tool to practice addition. The game tracks the students' progress and shows students which answers are correct and incorrect. Students can use virtual manipulatives to assist them in correctly adding a number sentence. As students progress to the next level the problems get more difficult.

### MA19.K.12

Fluently add and subtract within 5.

## UP:MA19.K.12

• Fluently

### Knowledge

Students know:
• characteristics of addition and subtraction contexts such as putting together, adding to, taking apart, and taking from.
• Strategies for efficiently determining sums and differences within five.

### Skills

Students are able to:

### Understanding

Students understand that:
• Fluency involves a mixture of "just knowing" answers, knowing answers from patterns, and knowing answers from the use of strategies. The word fluently is used in the standards to mean accurately, efficiently, and flexibly.

### MA19.K.9

Solve addition and subtraction word problems, and add and subtract within 10, by using concrete objects or drawings to represent the problem.

## UP:MA19.K.9

### Vocabulary

• Concrete objects
• Drawings

### Knowledge

Students know:
• Characteristics of addition and subtraction contexts such as putting together, adding to, taking apart, and taking from.

### Skills

Students are able to:
• represent quantities and operations physically, pictorially, or symbolically.
• Strategically use a variety of representations to solve addition and subtraction word problems.
• Use informal and mathematical language to communicate addition and subtraction representations.
• Accurately compute sums and differences.

### Understanding

Students understand that:
• both putting together and adding to can be viewed as addition.
• both taking apart and taking from can be viewed as subtraction.
• Mathematical problems can be solved using a variety of strategies and representations.

### Phase

After/Explain/Elaborate
Learning Objectives

### Learning Objectives

Students will solve addition problems by using objects to represent the problem.

Students will fluently add within 5.

### Activity Details

The students will use the website to use virtual manipulatives to perform addition problems. The students will complete this game after a whole group math lesson on addition. This website will be placed as a center during small group math centers.

Assessment Strategies

### Assessment Strategies

The students will be assessed at the end of the game. The website checks each answer and lets students know how many they got correct. The teacher will have students alert her when they are finished with each round of the game.

### Variation Tips

Students can write their own marble math addition sentence and draw marbles to represent their problem.

### Background / Preparation

The teacher should be able to access the internet and the website www.abcya.com. For ease of use with students, the teacher can put the website on the desktop. When putting on the desktop, the icon of the website is a monkey.