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833 teachers viewed a Lesson

Simplifying Expressions Day One

7th Grade Math » Unit: Expressions and Equations
Big Idea: : Students will need a strong background in distributive property when simplifying expressions. This is a great lesson to fill in gaps with students who may lack understanding with distributive property.
3 teachers favorited a Reflection

Collaboration and Conjecture

The Cost of the Death Star

8th Grade Math » Unit: Scale of the Universe: Fluency and Applications
12 teachers favorited a Resource

Addition/Subtraction Problems

Mentally Speaking!

2nd Grade Math » Unit: Numbers & Operation in Base Ten Grade 2
Big Idea: Using base ten blocks and place value, students explore how to become more fluent in adding and subtracting two-digit numbers without regrouping.
243 teachers viewed a Lesson

Circle and Stars: Grouping Compared to Arrays

4th Grade Math » Unit: Concepts of Multiplication
Big Idea: Students explain the difference between arrays and grouping to represent multiplication.
Michelle Braggs added a Resource


Adding, Subtracting, and Understanding Decimals

6th Grade Math » Unit: Number Sense
Big Idea: Line 'Em Up! How to properly add and subtract decimal quantities.
2 teachers favorited a Video

Exam Day 1 Quick Write

Arithmetic and Geometric Sequences and Series Exam

Algebra II » Unit: Arithmetic and Geometric Sequences
Big Idea: Represent arithmetic and geometric sequences/series with various models in an exam over the unit.
5 teachers favorited a Lesson

Orange Day!

Kindergarten Math » Unit: Colors All Around
Big Idea: Students will get creative with the color orange!
44 teachers favorited a Lesson

Angle and line art

4th Grade Math » Unit: Geometry
Big Idea: In this lesson, students create a unique art project by reviewing important geometric terms.
Grant Harris added a Reflection

More Scaffolding and Models Please!

Next time I teach a version of this lesson, I may not ask students to find the unit rate at all.  Instead, we will work on modeling decimal increments such as 1.5 or 2.5 to help build their number sense.   I often saw errors on double number lines such as 0 followed by 1.5 then 2, 3.5, 4 or some such variation.  A number line with tenths, for example, may have been more helpful for my students.  

I allowed students to use calculators to make working with the numbers easier.  Since this is the first time during the school year that I have allowed my students to use calculators, I should have built in more time for them to find multiples of decimals.  Unfortunately, my calculators do not do repeated operations as easily as most calculators where you can press something like 0 + 1.5 and continuously press the equals button to see the next multiple of 1.5.  

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Proportional Relationships With Decimals

7th Grade Math » Unit: Proportional Relationships
Marisa Laks added a Lesson

Congruent Triangles Based on Rigid Motions

Geometry » Unit: Rigid Motions
Big Idea: Students will examine triangles on the coordinate plane and use rigid motions to show two triangles are congruent.
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