School Improvement in Maryland

Gr. 8 Unit: Investigate Patterns of Association in Bivariate Data

Unit Overview

This unit builds on prior experience with ratios and proportions, linear relationships, and graphing points on the coordinate plane. Major themes include constructing tables and scatter plots to display and analyze bivariate data (data in two variables), using linear equations and graphs of lines to model relationships between and to solve problems involving two quantitative variables.

Essential Questions:

  • How can we gather, organize, and display bivariate data to communicate and justify results in authentic situations?
  • How can we analyze bivariate data to make inferences and/or predictions based on surveys, experiments, probability, and observations?
  • What mathematical processes and skills are used to investigate patterns of association in bivariate data?
  • Can non-linear data be “linearlized,” or placed in a linear format?

A question is essential when it stimulates multi-layered inquiry, provokes deep thought and lively discussion, requires students to consider alternatives and justify their reasoning, encourges re-thinking of big ideas, makes meaningful connections with prior learning, and provides students with opportunities to apply problem-solving skills to authentic situations.

Unit Lesson

Additional information such as Teachers Notes, Enduring Understandings,Content Emphasis by Cluster, Focus Standards, Possible Student Outcomes, Essential Skills and Knowledge Statements and Clarifications, and Interdisciplinary Connections can be found in this Lesson Unit.

Available Model Lesson Plans

The lesson plan(s) have been written with specific standards in mind. Each model lesson plan is only a MODEL - one way the lesson could be developed. We have NOT included any references to the timing associated with delivering this model. Each teacher will need to make decisions related ot the timing of the lesson plan based on the learning needs of students in the class. The model lesson plans are designed to generate evidence of student understanding.

This chart indicates one or more lesson plans which have been developed for this unit. Lesson plans are being written and posted on the Curriculum Management System as they are completed. Please check back periodically for additional postings.

CCSC Alignment: 8.SP.A.1-4

Available Model Lesson Seeds

The lesson seed(s) have been written with specific standards in mind. These suggested activity/activities are not intended to be prescriptive, exhaustive, or sequential; they simply demonstrate how specific content can be used to help students learn the skills described in the standards. Seeds are designed to give teachers ideas for developing their own activities in order to generate evidence of student understanding.

This chart indicates one or more lesson seeds which have been developed for this unit. Lesson seeds are being written and posted on the Curriculum Management System as they are completed. Please check back periodically for additional postings.

CCSC Alignnment: 8.SP.A.1