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.

T.3.PC

T.3.PC.1Understand radian measure of an angle as the length of the arc on the unit circle subtended by the angle.T.3.PC.2Explain how the unit circle in the coordinate plane enables the extension of trigonometric functions to all real numbers, interpreted as radian measures of angles traversed around the unit circle.T.3.PC.3(+) Use special right triangles to determine geometrically the exact values of sine, cosine, tangent for π/3, π/4, π/6, and π/2. (+) Use the unit circle to express the values of sine, cosine, and tangent for π-x, π+x, and 2π-x in terms of their exact values for x where x is any real number.T.3.PC.4(+) Develop the Pythagorean identity, sin^2(θ) + cos^2(θ) = 1. (+) Given sin(θ) , cos(θ), or tan(θ) and the quadrant of the angle, use the Pythagorean identity to find the remaining trigonometric functions.T.3.PC.5(+) Develop the addition and subtraction formulas for sine, cosine, and tangent and use them to solve problems.T.3.PC.6Derive the formula A = (½)ab sin C for the area of a triangle by drawing an auxiliary line from a vertex perpendicular to the opposite side.T.3.PC.7Prove the Law of Sines and the Law of Cosines and use them to solve problems.T.3.PC.8(+) Understand and apply the Law of Sines and the Law of Cosines to find unknown measurements in right and non-right triangles.T.3.PC.9Define and use reciprocal functions, cosecant, secant, and cotangent to solve problems.

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