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TFSD Unwrapped Standard Grade 1 - Mathematics Power Standard (s) Reference: Standard 5 – Estimation and Computation State Standard: 1.2 Perform computations accurately; 1.3 Estimate and judge reasonableness of results District Standard: 7.1 Understands the concept of estimate and common language used with estimation (e.g. “about”, “close to”, “greater than”); 7.2 Uses physical objects or draws pictures to solve problems; 7.3 Adds and subtracts whole numbers; 7.4 Justifies the purpose for each step in basic calculations (e.g. in oral or written form); 7.5 Understands the inverse relationship of addition and subtraction; 7.6 Knows when to add and subtract in a problem solving situation; 7.7 Generates and solves number sentences vertically and horizontally; 7.8 Solves simple open sentences involving basic addition and subtraction TFSD Power Standard: Students apply estimation and compute basic addition and subtraction. Concepts: Need to know about (Nouns) • Addition • Subtraction • Estimation • Objects • Pictures • Symbols • Numbers • Calculations • Relationships • Problem Solving • Comparisons (about, close to, greater than, less than…) • Part • Whole Skills: Be able to do (Verbs) • Add numbers under 100 without re-grouping • Subtract numbers under 100 without re-grouping • Estimate numbers in a set <25 • Solve simple open number sentences, number sentences in horizontal and vertical form • Use objects to solve problems • Understand mathematical symbols • Draw pictures to solve problems • Justify answers by written or oral explanations • Generate number sentences from a problem-solving situation • Explain strategies 1 06/08/06 • • Write sentences in horizontal and vertical form Understand the concept of estimation Identifying Big Ideas from Unwrapped Standards: 1. When we add, answers get bigger. 2. When we subtract, answers get smaller. 3. When we estimate, we make a smart guess about what the answer will be. 4. Math sentences can be written horizontal or vertical. Essential Questions from Big Ideas to Guide Instruction and Assessment: 1. What happens when we add numbers together? 2. What happens when we subtract numbers? 3. How do we estimate? 4. What two ways can a math sentence be written? Possible Topics or Context: (what you will use to teach the concepts and skills-particular unit, lessons or activities) 2 06/08/06