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.

M.3HSLA.15

Understand that polynomials form a system analogous to the integers, namely, they are closed under the operations of addition, subtraction and multiplication; add, subtract and multiply polynomials.

Example Problems

Expand:

(x + 9)(x^4 - 2x^2 + x - 7)

Write your answer in polynomial standard form.

Expand:

(x^2 - 8)(3x^3 + x^2 - x + 4)

Write your answer in polynomial standard form.

Expand:

(5x + 1)(3x^3 - 2x^2 + 7x - 4)

Write your answer in polynomial standard form.

Khan Academy Resources

Warmup: Multiplying binomials Multiplying binomials by polynomials review Adding and subtracting polynomials review Binomial special products review Multiplying monomials by polynomials review Add polynomials (intro)Multiply binomials by polynomials Multiply binomials intro Multiply binomials by polynomials: area model Polynomial special products: perfect square Multiply monomials by polynomials Polynomial special products: difference of squares Multiply monomials Add & subtract polynomials Multiply binomials: area model Multiply perfect squares of binomials Multiply monomials by polynomials: area model Subtract polynomials (intro)Multiply binomials Subtracting polynomials Multiplying monomials by polynomials Multiplying binomials Special products of the form (ax+b)(ax-b)Squaring binomials of the form (ax+b)² Multiplying binomials by polynomials Adding polynomials Multiply monomials by polynomials: Area model Polynomial special products: difference of squares Squaring binomials of the form (x+a)² Multiplying binomials: area model Special products of the form (x+a)(x-a)Polynomial subtraction Multiplying monomials by polynomials: area model Multiplying binomials intro Polynomial special products: perfect square Multiplying monomials Multiplying binomials by polynomials: area model

1-on-1 AI tutoring aligned to M.3HSLA.15. Instant help for students, real-time insights for teachers.

Used in classrooms by 100,000+ students at Baltimore County, Plano ISD, Deer Valley USD, KIPP, and districts nationwide.

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