Birthday Candles Three Act Task Big Idea: Subtraction with numbers to 10 can be modelled concretely, pictorially, and symbolically to develop computational fluency. Curricular Competencies: Reasoning and Analyzing use reasoning to explore and make connections estimating reasonably developing mental math strategies and abilities to make sense of quantities model mathematics in contextualized experiences and explore the utility of mathematics as a tool for solving real-life problems Understanding and Solving visualizing to explore mathematical concepts develop, demonstrate and mathematical understanding through play, inquiry and problem solving. develop and use multiple strategies to engage in problem solving Communicating and Representing communicate mathematical thinking in many ways explain and justify represent mathematical ideas in concrete, pictorial, and symbolic forms Connecting and Reflecting reflect on mathematical thinking connect mathematical concepts to each other Content: Subtraction to 10; estimating sums and differences; using various strategies; using different models such as an open number line and ten frames; using subtraction in problem-based situations. ACT ONE:
Birthday Candles Three Act Task Big Idea: Subtraction with numbers to 10 can be modelled concretely, pictorially, and symbolically to develop computational fluency. Curricular Competencies: Reasoning and Analyzing use reasoning to explore and make connections estimating reasonably developing mental math strategies and abilities to make sense of quantities model mathematics in contextualized experiences and explore the utility of mathematics as a tool for solving real-life problems Understanding and Solving visualizing to explore mathematical concepts develop, demonstrate and mathematical understanding through play, inquiry and problem solving. develop and use multiple strategies to engage in problem solving Communicating and Representing communicate mathematical thinking in many ways explain and justify represent mathematical ideas in concrete, pictorial, and symbolic forms Connecting and Reflecting reflect on mathematical thinking connect mathematical concepts to each other Content: Subtraction to 10; estimating sums and differences; using various strategies; using different models such as an open number line and ten frames; using subtraction in problem-based situations. ACT ONE:
birthday_candles_subtraction.docx