In November 2022, Khan Academy added new content to select lessons in our Eureka/EngageNY courses. We’ve used existing content from our other math subjects, so it's possible that you've already covered it there. It's also possible that added exercises might adjust your mastery percentage in these courses - here's the maximum drop you could see from this update:
| Course | Previous exercise count | Current exercise count |
Maximum mastery percentage drop
|
| 8th Grade | 124 | 125 | 0.8% |
| Algebra 1 | 174 | 175 | 0.6% |
| Geometry | 85 | 91 | 6.6% |
| Algebra 2 | 119 | 126 | 5.6% |
| Precalculus | 104 | 116 | 10.3% |
Here's a complete list of content that was added. Note that these courses specifically align with Eureka Math, not Eureka Math Squared. Happy learning!
| Subject | Content Type | Name |
| 8th grade (Eureka Math/EngageNY) | Article | Volume formulas review |
| 8th grade (Eureka Math/EngageNY) | Article | Volume of composite figures |
| 8th grade (Eureka Math/EngageNY) | Exercise | Apply volume of solids |
| 8th grade (Eureka Math/EngageNY) | Video | Applying volume of solids |
| Algebra 1 (Eureka Math/EngageNY) | Exercise | Rational equations intro |
| Algebra 1 (Eureka Math/EngageNY) | Video | Rational equations intro |
| Algebra 2 (Eureka Math/EngageNY) | Article | Multiplying binomials by polynomials review |
| Algebra 2 (Eureka Math/EngageNY) | Article | Reciprocal trig ratios |
| Algebra 2 (Eureka Math/EngageNY) | Article | Simplifying square roots review |
| Algebra 2 (Eureka Math/EngageNY) | Exercise | Multiply binomials by polynomials: area model |
| Algebra 2 (Eureka Math/EngageNY) | Exercise | Finding errors in study conclusions |
| Algebra 2 (Eureka Math/EngageNY) | Exercise | Multiply binomials by polynomials |
| Algebra 2 (Eureka Math/EngageNY) | Exercise | Simplify square roots (variables) |
| Algebra 2 (Eureka Math/EngageNY) | Exercise | Conclusions in observational studies versus experiments |
| Algebra 2 (Eureka Math/EngageNY) | Exercise | Reciprocal trig ratios |
| Algebra 2 (Eureka Math/EngageNY) | Exercise | Simplify square roots |
| Algebra 2 (Eureka Math/EngageNY) | Video | Finding reciprocal trig ratios |
| Algebra 2 (Eureka Math/EngageNY) | Video | Using reciprocal trig ratios |
| Algebra 2 (Eureka Math/EngageNY) | Video | Introduction to sampling distributions |
| Algebra 2 (Eureka Math/EngageNY) | Video | Multiplying binomials by polynomials |
| Algebra 2 (Eureka Math/EngageNY) | Video | Multiplying binomials by polynomials: area model |
| Algebra 2 (Eureka Math/EngageNY) | Video | Sampling distribution of sample proportion part 1 |
| Algebra 2 (Eureka Math/EngageNY) | Video | Sampling distribution of sample proportion part 2 |
| Algebra 2 (Eureka Math/EngageNY) | Video | Simplifying square roots |
| Algebra 2 (Eureka Math/EngageNY) | Video | Simplifying square roots (variables) |
| Algebra 2 (Eureka Math/EngageNY) | Video | Statistical significance of experiment |
| Geometry (Eureka Math/EngageNY) | Article | Cavalieri's principle in 2D |
| Geometry (Eureka Math/EngageNY) | Article | Cavalieri's principle in 3D |
| Geometry (Eureka Math/EngageNY) | Article | Volume of a pyramid or cone |
| Geometry (Eureka Math/EngageNY) | Exercise | Corresponding parts of congruent triangles |
| Geometry (Eureka Math/EngageNY) | Exercise | Corresponding sides and points |
| Geometry (Eureka Math/EngageNY) | Exercise | Apply Cavalieri's principle |
| Geometry (Eureka Math/EngageNY) | Exercise | Relate scale drawings to area |
| Geometry (Eureka Math/EngageNY) | Exercise | Use related volumes |
| Geometry (Eureka Math/EngageNY) | Exercise | Volume of prisms and pyramids |
| Geometry (Eureka Math/EngageNY) | Video | Cavalieri's principle in 3D |
| Geometry (Eureka Math/EngageNY) | Video | Geometric constructions: triangle-inscribing circle |
| Geometry (Eureka Math/EngageNY) | Video | Geometric constructions: triangle-circumscribing circle |
| Geometry (Eureka Math/EngageNY) | Video | Incenter and incircles of a triangle |
| Geometry (Eureka Math/EngageNY) | Video | Area of a circle intuition |
| Geometry (Eureka Math/EngageNY) | Video | Proof: Triangle altitudes are concurrent (orthocenter) |
| Geometry (Eureka Math/EngageNY) | Video | Vertical angles are congruent proof |
| Geometry (Eureka Math/EngageNY) | Video | Proving triangle medians intersect at a point |
| Geometry (Eureka Math/EngageNY) | Video | Solving a scale drawing word problem |
| Geometry (Eureka Math/EngageNY) | Video | Scale factors and area |
| Geometry (Eureka Math/EngageNY) | Video | Using related volumes |
| Geometry (Eureka Math/EngageNY) | Video | Volume of pyramids intuition |
| Geometry (Eureka Math/EngageNY) | Video | Volumes of cones intuition |
| Precalculus (Eureka Math/EngageNY) | Article | Cavalieri's principle in 2D |
| Precalculus (Eureka Math/EngageNY) | Article | Cavalieri's principle in 3D |
| Precalculus (Eureka Math/EngageNY) | Article | Linearity |
| Precalculus (Eureka Math/EngageNY) | Article | Linear perspective interactive |
| Precalculus (Eureka Math/EngageNY) | Article | Volume formulas review |
| Precalculus (Eureka Math/EngageNY) | Article | Volume of a pyramid or cone |
| Precalculus (Eureka Math/EngageNY) | Exercise | 2D rendering intuition |
| Precalculus (Eureka Math/EngageNY) | Exercise | Apply Cavalieri's principle |
| Precalculus (Eureka Math/EngageNY) | Exercise | Exponential model word problems |
| Precalculus (Eureka Math/EngageNY) | Exercise | Graphically multiply complex numbers |
| Precalculus (Eureka Math/EngageNY) | Exercise | Parametric ray intuition |
| Precalculus (Eureka Math/EngageNY) | Exercise | Divide quadratics by linear expressions (with remainders) |
| Precalculus (Eureka Math/EngageNY) | Exercise | Ray intersection with line |
| Precalculus (Eureka Math/EngageNY) | Exercise | Ray intersection with plane |
| Precalculus (Eureka Math/EngageNY) | Exercise | Solve for t |
| Precalculus (Eureka Math/EngageNY) | Exercise | Use matrices to manipulate data |
| Precalculus (Eureka Math/EngageNY) | Exercise | Use matrices to represent data |
| Precalculus (Eureka Math/EngageNY) | Exercise | Use matrices to transform the plane |
| Precalculus (Eureka Math/EngageNY) | Video | Geometric constructions: circle tangent (example 2) |
| Precalculus (Eureka Math/EngageNY) | Video | Cavalieri's principle in 3D |
| Precalculus (Eureka Math/EngageNY) | Video | Geometric constructions: circle tangent |
| Precalculus (Eureka Math/EngageNY) | Video | Half-life and carbon dating |
| Precalculus (Eureka Math/EngageNY) | Video | How one-point linear perspective works |
| Precalculus (Eureka Math/EngageNY) | Video | Multiplying complex numbers graphically example: -1-i |
| Precalculus (Eureka Math/EngageNY) | Video | Multiplying complex numbers graphically example: -3i |
| Precalculus (Eureka Math/EngageNY) | Video | Intro to long division of polynomials |
| Precalculus (Eureka Math/EngageNY) | Video | 1. Ray tracing intuition |
| Precalculus (Eureka Math/EngageNY) | Video | 2. Parametric form of a ray |
| Precalculus (Eureka Math/EngageNY) | Video | 3. Calculate intersection point |
| Precalculus (Eureka Math/EngageNY) | Video | 4. Using the line equation |
| Precalculus (Eureka Math/EngageNY) | Video | 5. 3D ray tracing part 1 |
| Precalculus (Eureka Math/EngageNY) | Video | Exponential model word problem: medication dissolve |
| Precalculus (Eureka Math/EngageNY) | Video | Exponential model word problem: bacteria growth |
| Precalculus (Eureka Math/EngageNY) | Video | Using matrices to manipulate data: Game show |
| Precalculus (Eureka Math/EngageNY) | Video | Using matrices to manipulate data: Pet store |
| Precalculus (Eureka Math/EngageNY) | Video | Using matrices to represent data: Networks |
| Precalculus (Eureka Math/EngageNY) | Video | Using matrices to represent data: Payoffs |
| Precalculus (Eureka Math/EngageNY) | Video | Using matrices to transform the plane: Composing matrices |
| Precalculus (Eureka Math/EngageNY) | Video | Using matrices to transform the plane: Mapping a vector |
| Precalculus (Eureka Math/EngageNY) | Video | Volume of pyramids intuition |
| Precalculus (Eureka Math/EngageNY) | Video | Volumes of cones intuition |
| Precalculus (Eureka Math/EngageNY) | Video | Wave interference |
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