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DiffiMath

Rated 4.42 out of 5, based on 12 reviews
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St. Louis, Missouri, United States
About the store
I have taught for five years in the public sector and 2 years in the private sector in Missouri. Before this, I worked for a well-known educational technology company, where I created math formative and summative items that fit the state standards of all 50 states.
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Preview of Slopes of Parallel and Perpendicular Lines Discovery Activity

Slopes of Parallel and Perpendicular Lines Discovery Activity

Created by
DiffiMath
Want to create a student-led learning environment? Give your students the opportunity to practice their graphing skills as well as their ability to come to conclusions with this activity. In this activity, students graph linear functions and use their equations to discover the relationships between the slopes of parallel and perpendicular lines ALL ON THEIR OWN!
Preview of Geometry Unit 2 - Logic and Proof

Geometry Unit 2 - Logic and Proof

Created by
DiffiMath
Need a head start on planning your lessons for the logic and proof unit in geometry class? I have you covered. In this download you will get access to the following: Unit 2 materials: 1 unit study guide 1 unit test 1 advertising logic project Section 1: Patterns and Inductive Reasoning 1 slides lesson 1 independent practice Section 2: Conditional Statements 1 slides lesson 1 independent practice Section 3: Biconditionals 1 slides lesson 1 independent practice 1 mid-unit quiz Section 4: Deductive
Preview of Geometry Unit 1

Geometry Unit 1

Created by
DiffiMath
Need a head start on planning for your first unit in geometry? Look no further. In this google drive link, you will gain access to: Unit 1 materials: 1 unit study guide 1 unit test Section 0: Definitions 1 slides lesson with accompanying handout 1 pretest 1 independent practice 1 quiz 3 activities Section 1: Segment and Angle Addition Postulate 1 slides lesson 1 indpendent practice 1 in-class protractor practice Section 2: Geometric Constructions 1 slides lesson 2 indpendent practices 1 gallery
Preview of Area of a Triangle using Sine

Area of a Triangle using Sine

Created by
DiffiMath
This standard is a tough one to cover, so I built this activity to help lead my students through it. I split up the class into groups of threes and have them work through it at a whiteboard. I roam the room and listen to their discussions and try to help only if there is no activity within the group. If you are interested in a thinking classroom, this is an easy one to try.
Preview of Introduction to Domain and Range Activity

Introduction to Domain and Range Activity

Created by
DiffiMath
Domain and Range are so tough for my students to understand. The first part of this activity is a mini lesson where either the teacher or student-led groups discover how to draw boxes on the axes to help write the domain and range in interval notation. This activity has a Check for Understanding so that you can see at the end of the mini lesson how much your students have grown on this topic.
Preview of Showing Functions are Inverses Activity

Showing Functions are Inverses Activity

Created by
DiffiMath
I use this activity as a way to introduce my algebra 2 students to an application of function composition, proving that two functions are inverses. The activity is math heavy, so I recommend that it is used for your more advanced students, but the challenge is good for all.
Preview of Rewrite Formulas Activity

Rewrite Formulas Activity

Created by
DiffiMath
This standard is a really tough one to cover because it is worded so unnaturally and is found within a lot of different units. My way to cover this is in algebra 1 by using the simple example of the formula for the perimeter of a rectangle and then giving the students a couple of examples to work with that are familiar to them. Try it out!
Preview of What is a solution? Activity

What is a solution? Activity

Created by
DiffiMath
I found that my students never truly understood the definition of a solution in terms of a function with regards to a table, graph, ordered pairs, and a function. This activity also includes a Check for Understanding at the end.
Preview of Properties of Complex Numbers Activity

Properties of Complex Numbers Activity

Created by
DiffiMath
This is a very mathy activity where advanced students get to learn the formal proof process for showing parts of the closure of the set of complex numbers with respect to addition and multiplication. This is only for an advanced class and is meant as a challenge to get them to think of math as a language of understanding and not just the applications of numerical values.
Preview of Show and explain the steps for solving an absolute value equation minilesson

Show and explain the steps for solving an absolute value equation minilesson

Created by
DiffiMath
This minilesson is a great way to guide students through the whys and hows for solving absolute value equations. Use the Check for Understanding at the end to get feedback from your students on what they learned.
Preview of Derive the Quadratic Formula

Derive the Quadratic Formula

Created by
DiffiMath
This activity is a wonderful way to introduce Algebra II students how to derive a formula by testing two different versions of the quadratic formula. It is heavy on the math notation, but don't let that scare you. If you can convince your students to try this, they can really show growth with their understanding of quadratic functions.
Preview of Derive Geometric Summation Formula

Derive Geometric Summation Formula

Created by
DiffiMath
This standard is very hard to cover. This activity is an attempt to use student language to help them learn how to derive a formula that is really nice to know. I would recommend that you lead them through this activity, but if your students are more advanced, let them attack it in groups.
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About the store

Experience

I have taught for five years in the public sector and 2 years in the private sector in Missouri. Before this, I worked for a well-known educational technology company, where I created math formative and summative items that fit the state standards of all 50 states.

Teaching style

In my classroom, I take a constructivist approach allowing my students to facilitate the learning. My job is to create the activities to keep them topical and guide them along a path of success. I am a staunch practitioner of a thinking classroom where my students spend the majority of the time collaborating around the solution of a problem up at the boards around my classroom. To outsiders, if might be chaos. We just call it learning.

Awards & shining teacher moments

Teacher of the Month x4 (eligible each year, won each year)

My own education history

I attended Southeast Missouri State University to earn a Bachelor's degree in Secondary Education - Mathematics and a Bachelor's degree in Applied Mathematics. My passion for math led me to attend grad school at Southern Illinois University Carbondale and earn my Master's in Mathematics. I have over 80 hours of training when it comes to working with students with autism, ESOL, and high risk students.