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Chance Vocabulary and Theoretical Probability

4th Grade · Math · Open Global Math

6 lessons

Goal

Describe event likelihoods using formal vocabulary, place probabilities on a 0-to-1 number line, and compute theoretical probabilities as fractions.

6 lessons
0 of 6 done
  1. Using a Visual Likelihood Line from Impossible to CertainUp next
  2. Describing Likelihood Using 'a in b Chances'Not started yet
  3. Understanding Equally Likely OutcomesYou are here
  4. Identifying and Creating Non-Equally Likely OutcomesNot started yet
  5. Quantifying Probabilities as Fractions Between 0 and 1Not started yet
  6. Comparing Theoretical Probabilities of Different EventsNot started yet
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Learning standards covered

GlobalOGM.5.ST.3Open Global Math Standards 2026™ · 4th Grade

Describe the likelihood of chance events using probability vocabulary ('impossible', 'unlikely', 'equally likely', 'likely', 'certain', 'a in b chances'); conduct repeated chance experiments, record outcomes, distinguish independent and dependent events, and quantify simple probabilities as fractions between 0 and 1.