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 3 taught?

This standard is part of the Grade 3 curriculum in Common Core State Standards.

3: Grade 3

Grade 3

Print

Multiplication and division within 100 are modeled with arrays, equal groups, and equal parts. Fractions appear on number lines, area and perimeter get their first formulas, and students solve two-step word problems, round to the nearest 10 or 100, and display data on bar graphs.

3.GGeometry 3.MDMeasurement and Data 3.NBTNumber and Operations in Base Ten 3.NFNumber and Operations: Fractions 3.OAOperations and Algebraic Thinking

Example Problems

Are both trapezoids and parallelograms quadrilaterals?

Function

f

is continuous and decreasing.
We're interested in the area under the curve between

x = -8

and

x = -2

, and we're considering using left and right Riemann sums to approximate it.

Order the following areas from least (on the left) to greatest (on the right).

Actual area under the curve
Left Riemann sum
Right Riemann sum

36 \times 92 \approx ?

What is the next term of the arithmetic sequence?

1, -2, -5

A solid cube of iron has edges

8 \text{ centimeters}

long. Given that the density of iron is

7.9 \text{ grams per cubic centimeter}

, what is the cube's mass?

1-on-1 AI tutoring aligned to 3. 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 →