## Welcome, Seventh Grade Math Teachers.

This is an explanation of the cluster organization including links leading to the NC2ML Collaborative for specific resources.

The clusters are recommended using the sample progression below, but this is not the only possible progression teachers may use. When considering changes, please look to the “Connections & Rationale” for notes about when one cluster must follow another. The timing for the units in the “Recommended Timeframe” should not be treated as a rigid timetable. Also, continue to focus on how the Standards for Mathematical Practice can be incorporated with these content clusters.

**Recommended Order**

* Proportional Relationships

* Reasoning with Rational Numbers

* Probabilistic Reasoning

* Reasoning About Expressions

* Reasoning About Equations and Inequalities

* Geometric and Measurement Reasoning

* Reasoning about Population Samples

* Comparing Populations

**Alternative Order**

* Proportional Relationships**

* Reasoning with Rational Numbers**

* Probabilistic Reasoning

* Reasoning About Expressions

* Reasoning About Equations and Inequalities

* Geometric and Measurement Reasoning

* Reasoning about Population Samples++

* Comparing Populations

**Clusters with ** can be switched in order; ++Clusters with ** can be switched in order

A significant emphasis should be placed on understanding operations with fractions and decimals and proportional reasoning. Anecdotal evidence and teachers’ experiences indicate that developing strong proportional reasoning in students is a challenge. As 7th graders are developing new understanding of rational numbers and operations with rational numbers, they are also being asked to reason and solve problems with ratios and proportions. Since “fraction” and “ratio” are not exactly the same thing, teachers need to be aware of the fact that success in operations with fractions does not always indicate an ability to reason with ratios. The mathematics of fractions is often the mathematics of ratio, but the reasoning with each is not the same. One resource for more information about reasoning with ratios and proportions in NCTM’s Developing Essential Understanding of Ratios, Proportions, and Proportional Reasoning, 6-8.

Though there is a single cluster entitled “Proportional Relationships,” teachers should not anticipate that teaching this one unit will suffice as the single moment that develops their students’ proportional reasoning. Developing students’ proportional reasoning, should be a goal throughout the 7th grade year.

Please pay attention to the “Supporting Standards” and “Connections & Rationale” portions of this recommendation. These tools should help to connect mathematical concepts across the units, and to highlight potential opportunities for revisiting previous units’ main ideas.

- Advice for thinking about any re-ordering of these content clusters:

It is recommended that the first week of the school year be spent engaging students with open-ended mathematics problems designed to support the students’ growth mindset. This first week is also an opportune time for setting up the classroom expectations and norms for collaborating with classmates and participating in whole class discussions.

Youcubed.org offers 3 Weeks of Inspirational Mathematics. It is recommended that 6th graders experience Week 1, 7th graders Week 2, and 8th graders Week 3. However, other general problem solving lessons can be used.

- There are numerous ways to connect from one cluster to the previous or next cluster. Look to the standards in order to bridge these units.
- Note that Proportional Reasoning and Reasoning with Rational Numbers appear all along the length of the school year. We encourage a continued focus on developing proportional reasoning and understanding/fluency with rational number operations. Though there may be a unit that addresses these topics for a focused period of time, the topics should be integrated throughout the entire year.

Cluster | Recommended Time | Standards |
---|---|---|

Building a Mathematical Community ((Boaler's Week of Inspirational Math - Week 2) | 1 week | |

Proportional Relationships Cluster | 6 weeks | RP.1, RP.2, RP.3, G.1 Supporting standards EE.2, EE.3, EE.4, NS.2 |

Reasoning with Rational Numbers Cluster | 6 weeks | NS.1, NS.2, NS.3 Supporting standards EE.2, EE.3, RP.3, G.1 |

Probabilistic Reasoning Cluster | 3 weeks | SP.5, SP.6, SP.7, SP.8 Supporting standards RP.1, RP.2, RP.3 |

Reasoning about Expressions Cluster | 3 weeks | EE.1, EE.2 Supporting standards NS.1, NS.2 |

Reasoning about Equations and Inequalities Cluster | 6 weeks | EE.3, EE.4, G.2, G.5 Supporting standards NS.1, NS.2 |

Geometric and Measurement Reasoning Cluster | 3 weeks | G.4, G.6 Supporting standards NS.2, EE.2, RP.2 |

Reasoning about Population Samples Cluster | 4 weeks | SP, SP.1, SP.2 Supporting standards RP.1, RP.2, RP.3 |

Comparing Populations Cluster | 3 weeks | SP.3, SP.4 |