describe the likelihood that events will happen, and use that information to make predictions
use mathematical language, including the terms “impossible”, “possible”, and “certain”, to describe the likelihood of events happening, and use that likelihood to make predictions and informed decisions
Provide students with three spinners – one that is all purple, one that is half purple and half white, and one that is all white. Ask them to describe the likelihood of spinning purple on Spinner A, on Spinner B, and on Spinner C. Have them explain their reasoning.
Ask students what clothes they would wear tomorrow if the weather forecast says there is a high chance of rain.
When appropriate throughout the year, highlight scenarios like these so that students can continue to develop their understanding of how probability can affect decisions and can make connections between mathematics and daily life.
make and test predictions about the likelihood that the categories in a data set from one population will have the same frequencies in data collected from a different population of the same size
Ask students to revisit a question for which they have already collected data from their classmates. Have them predict what they think the results will be if they ask the same question of students in another Grade 1 class. For example, a student might predict:
“Most students in our class have a dog as a pet. I believe that most students in the other Grade 1 class will also have a dog.”
Have students collect the new set of data and compare the result with their prediction.