Access Point #: MAFS.7.SP.3.AP.7a (Archived Access Point)


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Compare actual results of a simple experiment when numbers of instances are increased.

Clarifications:

Essential Understandings

Concrete:

  • Use items like coins to determine the probability of an outcome (1/2 heads).
Representation:
  • Identify the formula for finding probability of an event (probability of an event happening = number of ways it can happen/total number of outcomes).
  • Understand the following concepts, symbols, and vocabulary for: probability, likelihood.

Number: MAFS.7.SP.3.AP.7a Category: Access Points
Date Adopted or Revised: 06/14 Cluster: Investigate chance processes and develop, use, and evaluate probability models. (Supporting Cluster) : 

Clusters should not be sorted from Major to Supporting and then taught in that order. To do so would strip the coherence of the mathematical ideas and miss the opportunity to enhance the major work of the grade with the supporting clusters.

Related Standards

Name Description
MAFS.7.SP.3.7: Develop a probability model and use it to find probabilities of events. Compare probabilities from a model to observed frequencies; if the agreement is not good, explain possible sources of the discrepancy.
  1. Develop a uniform probability model by assigning equal probability to all outcomes, and use the model to determine probabilities of events. For example, if a student is selected at random from a class, find the probability that Jane will be selected and the probability that a girl will be selected.
  2. Develop a probability model (which may not be uniform) by observing frequencies in data generated from a chance process. For example, find the approximate probability that a spinning penny will land heads up or that a tossed paper cup will land open-end down. Do the outcomes for the spinning penny appear to be equally likely based on the observed frequencies?



Related Courses

Name Description
1205040: M/J Grade 7 Mathematics
1205050: M/J Accelerated Mathematics Grade 7
1204000: M/J Foundational Skills in Mathematics 6-8
7812020: Access M/J Grade 7 Mathematics