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 HS taught?

This standard is part of the High School curriculum in Kentucky Academic Standards for Mathematics.

HS Math Standards | Kentucky | Kentucky Academic Standards for Mathematics

HS

High school standards span six conceptual categories: Algebra, Calculus, Functions, Geometry, Number and Quantity, and Statistics and Probability. Algebra and Functions form the core, covering polynomial, rational, exponential, and trigonometric expressions and equations across Algebra 1, Algebra 2, and Precalculus courses. Geometry addresses proof, transformations, and trigonometric ratios, while Statistics and Probability covers data analysis, inference, and probability models; Calculus standards are optional enrichment.

HS.AConceptual Category Algebra HS.CCalculus(+)HS.CaCalculus—Limits HS.CbCalculus—Function Behavior HS.CcCalculus—Continuity HS.CdCalculus—Understanding the Derivative HS.CeCalculus—Applications of Derivatives HS.CfCalculus—Understanding Integration HS.CgCalculus—Applications of Integration HS.FConceptual Category Functions HS.FaFunctions—Interpreting Functions HS.FbFunctions—Building Functions HS.FcFunctions—Linear, Quadratic and Exponential Functions HS.FdFunctions—Trigonometric Functions HS.GConceptual Category Geometry HS.GaGeometry—Congruence HS.GbGeometry—Similarity, Right Triangles and Trigonometry HS.GcGeometry—Circles HS.GdGeometry—Expressing Geometric Properties with Equations HS.GeGeometry—Geometric Measurement and Dimensions HS.GfGeometry—Modeling with Geometry HS.NConceptual Category Number and Quantity HS.NaNumber and Quantity—The Real Number System HS.NbNumber and Quantity—Quantities HS.NcNumber and Quantity—The Complex Number System HS.NdNumber and Quantity—Vector and Matrix Quantities HS.SPConceptual Category Statistics and Probability HS.SPaStatistics and Probability—Interpreting Categorical and Quantitative Data HS.SPbStatistics and Probability—Making Inferences and Justifying Conclusions HS.SPcStatistics and Probability—Conditional Probability and the Rules of Probability HS.SPdStatistics and Probability—Using Probability to Make Decisions

Example Problems

Expand and combine like terms:

(9y^5 + 2)^2

Which of the following functions are continuous for all real numbers?

g(x) = 2x + 5

h(x) = |x|

Is the following quadratic function concave up or concave down?

f(x) = 7x^2 - 5x + 1

f

is a finite function whose domain is the letters a to e. The following table lists the output for each input in

f

's domain.

x	a	b	c	d	e
$f(x)$	45	45	30	25	20

f

invertible?

Polygon Y has an area of 11 square units. Celia drew a scaled version of Polygon Y using a scale factor of 3 and labeled it Polygon Z.
What is the area of Polygon Z?

1-on-1 AI tutoring aligned to HS. 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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HS: HS

HS