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.

PC.4

Number and measure. The student uses process standards in mathematics to apply appropriate techniques, tools, and formulas to calculate measures in mathematical and real-world problems.

PC.4.ADetermine the relationship between the unit circle and the definition of a periodic function to evaluate trigonometric functions in mathematical and real-world problems.PC.4.BDescribe the relationship between degree and radian measure on the unit circle.PC.4.CRepresent angles in radians or degrees based on the concept of rotation and find the measure of reference angles and angles in standard position.PC.4.DRepresent angles in radians or degrees based on the concept of rotation in mathematical and real-world problems, including linear and angular velocity.PC.4.EDetermine the value of trigonometric ratios of angles and solve problems involving trigonometric ratios in mathematical and real-world problems.PC.4.FUse trigonometry in mathematical and real-world problems, including directional bearing.PC.4.GUse the Law of Sines in mathematical and real-world problems.PC.4.HUse the Law of Cosines in mathematical and real-world problems.PC.4.IUse vectors to model situations involving magnitude and direction.PC.4.JRepresent the addition of vectors and the multiplication of a vector by a scalar geometrically and symbolically.PC.4.KApply vector addition and multiplication of a vector by a scalar in mathematical and real-world problems.

Example Problems

The formula for average speed when traveling a distance of d over a time t is:

\frac{d}{t}

Bella says, 'I can run 8 miles per hour!' Winston says, 'I can run 700 feet per minute!'

Which one is faster?

The formula for average speed when traveling a distance of d over a time t is:

\frac{d}{t}

Helen says, 'I can walk 4 kilometers per hour!' Stefan says, 'I can walk 70 meters per minute!'

Who is faster?

The formula for average speed when traveling a distance of d over a time t is:

\frac{d}{t}

Daisy and Eddie are arguing about which one of them is faster.

Daisy says, 'I can bike 9 miles per hour!' and Eddie says, 'I can bike 800 feet per minute!'

Which one is faster?

1-on-1 AI tutoring aligned to PC.4. 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 →