Standards-based assessment and Instruction

## Drawing Animal Pictures

Ryan is drawing ten pictures of animals to put on his bedroom door. Ryan has finished drawing five animal pictures. How many more animal pictures does Ryan have to draw? Show and tell how you know.

### Common Core Content Standards and Evidence

#### K.OA Operations and Algebraic Thinking

4.  For any number from 1 to 9, find the number that makes 10 when added to the given number, e.g., by using objects or drawings, and record the answer with a drawing or equation.

This task requires students to find the number that makes 10 when added to five.

### Common Core Standards of Mathematical Practice

MP.1 Make sense of problems and persevere in solving them.
MP.3 Construct viable arguments and critique the reasoning of others.
MP.4 Model with mathematics.
MP.5 Use appropriate tools strategically.
MP.6 Attend to precision.

### Underlying Mathematical Concepts

• Number sense to 10
• Counting back/Subtraction

### Possible Problem-Solving Strategies

• Model (manipulatives)
• Diagram/Key
• Tally chart
• Number line

### Formal Mathematical Language and Symbolic Notation

• Model
• Diagram/Key
• Tally chart
• Number line
• Total/Sum
• Odd/Even
• More than (>)/Greater than (>)/Less than (<)
• Equivalent/Equal to
• Equation
• Equal shares
• Double

### Possible Solutions

Ryan has 5 more animal pictures to draw.

### Possible Connections

Below are some examples of mathematical connections. Your students may discover some that are not on this list.

• Ryan was half way done with his pictures.
• 10 pictures is an even number.
• 5 pictures is an odd number.
• Solve more than one way to verify the answer.
• 5 made, 5 to make is a fair share of pictures.
• There are an equal number of pictures made and pictures left to make.
• Equations: 5 + ? = 10 and 10 – 5 = 5.
• Double 5 is 10.
• Half of 10 is 5.

### Scoring Rationales and Corresponding Anchor Papers

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## Here's What People Are Saying

"In 1999, only 28% of our 8th grade students met or exceeded state standards." After the introduction of Exemplars, "In 2001, 56% of our 8th grade students met or exceeded the standards. In other words, we doubled the number of students passing the state test in the two-year time period."

R. Cox

Principal