2.3 solve addition, subtraction, multiplication and division problems, including those arising in concrete situations that use positive and negative numbers and combinations of these operations 2.4 determine the least common multiple and greatest common divisor of whole numbers. Students analyze and use tables, graphs and rules to solve problems involving rates and proportions. Students investigate geometric patterns and describe them algebraically. Students deepen their understanding of measurement of plane and solid shapes and use this understanding to solve problems. Students identify and describe the properties of two-dimensional figures.
Students compute and analyze statistical measurement for data sets.
Students use data samples of a population and describe the characteristics and limitations of the samples. 2.1 compare different samples from a population with the data from the entire population and identify when it makes sense to use a sample. Students determine theoretical and experimental probabilities and use these to make predictions about events. Students make decisions about how to approach problems. 1.1 analyze problems by identifying relationships, distinguishing relevant from irrelevant information, identifying missing information, sequencing and prioritizing information, and observing patterns 1.2 formulate and justify mathematical conjectures based upon a general description of the mathematical question or problem posed 1.3 determine when and how to break a problem into simpler parts 2.