I wasn’t quite sure what to blog about today, so I started looking through my drafts folder in Blogger. I ran across this post on a question stack I created for factoring trinomials during Algebra 1’s unit on polynomials.
I first blogged about this activity in November of 2015. Here’s the link to my original post.
I mostly kept the same questions, but I edited some of the problems to make my students have to factor out the GCF first.
Here are the questions:
Here are the answers:
I intentionally added two questions with a GCF of 2 and two questions with a GCF of x^2. This meant that students wouldn’t be able to automatically figure out the correct answer just by identifying the GCF.
So, how does a question stack work?
Students are given a double-sided deck of ten cards. One side of the card features a question. The other side features the answer to a DIFFERENT question Many people mistakenly assume that the answer printed on the back is the answer to the question on the front. These may look like flash cards, but they are definitely not flash cards.
Students begin the activity by turning over all of the cards to reveal ALL of the answers. I tell my students this is their answer bank.
Then, students flip over one card of their choosing. This will be their first problem to solve. When students find the solution, it should be in the answer bank if they have done everything correctly. They pick up the solution card and flip it over to reveal the next question.
I love question stacks because they are self-checking. This means I can focus my help on the groups struggling the most. The answer bank gets smaller and smaller with each question which helps build student confidence.
Here are some pictures of my students in action while doing this activity:
Free Download of Factoring Trinomials with GCFs Question Stack Activity
If you are looking for more resources for factoring, check out this factoring puzzle.
More Resources for Teaching Quadratics
- Factoring Activities
- Speedy Squares Activity for Quadratic Regression
- X Puzzles Factoring Review Game
- Quadratic Area Puzzles
- Factoring Puzzle for Quadratic Trinomials
- Shared Factors – A Quadratics Puzzle
- Factoring Quadratics Practice Activity (When a = 1)
- If the IRS had discovered the quadratic formula…
- Area Model Puzzles from Christie Bradshaw
- ZERO Game to Introduce Factoring Quadratics
- Vertex Form of a Quadratic Card Sort Activity
- Factoring Quadratics Foldable
Make Your Own Question Stacks
Want to make your own question stack activity? I have created an easy to use printable question stack template that works perfectly every time. All you have to do is add your own questions!
More Question Stack Activities
- Compound Inequalities Question Stack Activity
- Make Your Own Question Stack Template
- Order of Operations Question Stack Activity
- Evaluating Expressions Question Stack Activity – Advanced
- Distributive Property Question Stack Activity
- Question Stack Explanation Card
- Factoring Trinomials with GCFs Question Stack Activity
- Rationalizing the Denominator Question Stack Activity
- Adding and Subtracting Polynomials in Function Notation Question Stack Activity
- Operations with Radicals Question Stack Activity
- Evaluating Expressions Question Stack Activity – Basic
- Rational Expressions Question Stack Activity