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 AII taught?

This standard is part of the AII curriculum in Massachusetts Curriculum Framework for Mathematics.

AII: Model Algebra II [AII]

Model Algebra II [AII]

Print

Model Algebra II takes function analysis further, covering polynomial, rational, and trigonometric functions. Number and Quantity introduces complex numbers and vectors. Statistics covers inference, probability decisions, and interpreting categorical and quantitative data.

AII.A-APRAlgebra - Arithmetic with Polynomials and Rational Expressions AII.A-CEDAlgebra - Creating Equations AII.A-REIAlgebra - Reasoning with Equations and Inequalities AII.A-SSEAlgebra - Seeing Structure in Expressions AII.F-BFFunctions - Building Functions AII.F-IFFunctions - Interpreting Functions AII.F-LEFunctions - Linear, Quadratic, and Exponential Models AII.F-TFFunctions - Trigonometric Functions AII.N-CNNumber and Quantity - The Complex Number System AII.N-VMNumber and Quantity - Vector and Matrix Quantities AII.S-ICStatistics and Probability - Making Inferences and Justifying Conclusions AII.S-IDStatistics and Probability - Interpreting Categorical and Quantitative Data AII.S-MDStatistics and Probability - Using Probability to Make Decisions

Example Problems

Consider the following rational expression:

\frac{x^2 - 1}{5x^2 + 5x}

What is an equivalent expression in lowest terms?

A freight train carries c containers weighing w tons each and k pallets weighing q tons each, for a total load of L tons.
Write an equation that relates c, w, k, q, and L.

What is the area of the region between the graphs of

f(x) = x^2 + 1

and

g(x) = 4

?

Find the sum:

\sum_{k=1}^{40} 2(-0.8)^{k-1}

What is the inverse of the function?

f(x) = 2e^x

1-on-1 AI tutoring aligned to AII. 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.

Free for teachers, forever →