Students write down an explanation of how the front-end estimation strategy works in addition problems to give information on their understanding of the strategy.
Students decide on the best sample of students for a given survey and answer a multiple choice question. They also answer a question on sample size for best accuracy.
Students use their knowledge of the trigonometric functions sine, cosine, and tangent to calculate the length of sides of sails in a diagram of a yacht.
Students discuss making an initial estimate in addition problems using the front-end method followed by compensation to get a more accurate estimate. They then use this method on two addition problems.
In this task students continue a triangular shape pattern with sticks to explore the rule used in the pattern. Students then use their understanding of the pattern rule to continue the pattern without the sticks.