Is Goblins free for teachers?

Yes. Goblins offers a generous free tier that includes 1 live feedback assignment per week, insights on student mastery and replays, and the ability to upload your own content. The Max plan adds unlimited assignments, superadaptive mode, grade exports, standards growth reports, and SSO/LMS integration, with per-student pricing for schools and districts.

How does Goblins work?

Three simple steps: (1) Share an assignment from thousands of standards-aligned topics using a share code. (2) Students speak and draw their thinking naturally, and Goblins responds with Socratic questioning that sounds just like their teacher. (3) Teachers get real-time formative insights showing what students struggle with and suggestions to inform instruction.

Does Goblins prevent cheating?

Yes. Goblins uses a purpose-trained AI model that evaluates cheating signals in real time. It can detect when students are copying answers, using external tools inappropriately, or not genuinely working through problems. Copy-pasting answers is also blocked.

Can I use my own voice with Goblins?

Yes. Teachers can record their voice and take a selfie to create a custom 3D avatar in about 30 seconds. Students then hear help in their own teacher's voice and see a familiar face, making the experience more personal and effective.

What math levels does Goblins cover?

Goblins covers math from Grade 5 through AP Calculus, including thousands of standards-aligned topics. Teachers can also upload their own content for custom assignments at any level.

Is Goblins FERPA compliant?

Yes. Goblins is FERPA and state compliant. Student data privacy and security are a top priority.

Does Goblins support English Language Learners?

Yes. Goblins supports 30+ languages so teachers don't have to translate every worksheet. It is especially helpful for ELL students who need accessible math instruction in their native language.

What grade level is M.3HSSTEM taught?

This standard is part of the M curriculum in West Virginia College- and Career-Readiness Standards for Mathematics.

M.3HSSTEM: High School Mathematics III STEM

High School Mathematics III STEM

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High School Mathematics III STEM is the rigorous third-year course for students on a STEM trajectory. Complex polynomials, the Binomial Theorem, rational expressions, and the Fundamental Theorem of Algebra anchor the algebra content. Trigonometry, including the Laws of Sines and Cosines, and advanced probability round out the course.

M.3HSSTEM.10Extend polynomial identities to the complex numbers. For example, rewrite x^2 + 4 as (x + 2i)(x – 2i).M.3HSSTEM.11Know the Fundamental Theorem of Algebra; show that it is true for quadratic polynomials.M.3HSSTEM.19Know and apply the Binomial Theorem for the expansion of (x + y)^n in powers of x and y for a positive integer n, where x and y are any numbers, with coefficients determined for example by Pascal’s Triangle.M.3HSSTEM.21Understand that rational expressions form a system analogous to the rational numbers, closed under addition, subtraction, multiplication, and division by a nonzero rational expression; add, subtract, multiply and divide rational expressions.M.3HSSTEM.25Derive the formula A = 1/2 ab sin(C) for the area of a triangle by drawing an auxiliary line from a vertex perpendicular to the opposite side.M.3HSSTEM.26Prove the Laws of Sines and Cosines and use them to solve problems.M.3HSSTEM.27Understand and apply the Law of Sines and the Law of Cosines to find unknown measurements in right and non-right triangles (e.g., surveying problems and/or resultant forces).M.3HSSTEM.8Use probabilities to make fair decisions (e.g., drawing by lots or using a random number generator).M.3HSSTEM.9Analyze decisions and strategies using probability concepts (e.g., product testing, medical testing, and/or pulling a hockey goalie at the end of a game).M.3HSSTEM.ICDInferences and Conclusions from Data M.3HSSTEM.PRRPolynomials, Rational, and Radical Relationships M.3HSSTEM.TGTTTrigonometry of General Triangles and Trigonometric Functions

Example Problems

Expand the expression

(p - 6q)^4

using the binomial theorem.

Add.
The numerator should be expanded and simplified. The denominator should be expanded.

\frac{5}{x + 2} + \frac{7}{x - 5} =

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