Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Exact cover wikipedia , lookup
Routhian mechanics wikipedia , lookup
Computational fluid dynamics wikipedia , lookup
Perturbation theory wikipedia , lookup
Knapsack problem wikipedia , lookup
Lateral computing wikipedia , lookup
Mathematical optimization wikipedia , lookup
Multiple-criteria decision analysis wikipedia , lookup
Inverse problem wikipedia , lookup
Formative Instructional and Assessment Tasks MD Task 4c Domain Cluster Standard(s) Materials Task Developing Understanding Complete Understanding Measurement and Data Operations and Algebraic Thinking Relate addition and subtraction to length. Represent and solve problems involving addition & subtraction. 2.MD.5 Use addition and subtraction within 100 to solve word problems involving lengths that are given in the same units, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem. 2.OA.1 Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem. Compare- Smaller Unknown: More, One-step SF, Cubes or counters, pencil Provide materials to the student. Read the problem to the student: On the playground, Grace threw the ball 3 more feet than Ella. Grace threw the ball 21 feet. How far did Ella throw the ball? Write an equation that represents this problem. Use a symbol for the unknown number. Solve the problem and use words, numbers or pictures to explain your reasoning. 1. 2. 3. 4. 5. 6. 7. 8. Continuum of Understanding Incorrectly solves the problem. Relies on counting as primary strategy for solving problem. Equation is inaccurate. Explanation is lacking in detail or non-existent. Correctly solves the problem: 31 bracelets Successfully uses strategies such as making tens, creates easier or known sums, and basic facts. Equation is accurate (e.g., 21 + 3 = *) Explanation is clear. Strategy(ies) Used: Counting All Counting On Makes Tens Basic Facts Creates easier or known sums Doubles Doubles +/- 1, 2 Other: Standards for Mathematical Practice Makes sense and perseveres in solving problems. Reasons abstractly and quantitatively. Constructs viable arguments and critiques the reasoning of others. Models with mathematics. Uses appropriate tools strategically. Attends to precision. Looks for and makes use of structure. Looks for and expresses regularity in repeated reasoning. NC DEPARTMENT OF PUBLIC INSTRUCTION SECOND GRADE