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 F-LE taught?

This standard is part of the F-LE curriculum in Alaska Mathematics Standards.

F-LE: Linear, Quadratic, and Exponential Models

Linear, Quadratic, and Exponential Models

Print

Linear, Quadratic, and Exponential Models focuses on recognizing which function family fits a given situation and constructing the appropriate model. Linear growth by equal differences and exponential growth by equal factors are contrasted directly. Parameters are interpreted in context, and models are used to predict, compare, and make decisions.

F-LE.1Distinguish between situations that can be modeled with linear functions and with exponential functions.F-LE.2Construct linear and exponential functions, including arithmetic and geometric sequences, given a graph, a description of a relationship, or input-output table of values.F-LE.3Observe using graphs and tables that a quantity increasing exponentially eventually exceeds a quantity increasing linearly, quadratically, or (more generally) as a polynomial function.F-LE.4For exponential models, express as a logarithm the solution to ab^(ct) = d where a, c, and d are numbers and the base b is 2, 10, or e; evaluate the logarithm using technology.F-LE.5Interpret the parameters in a linear or exponential function in terms of a context.

Example Problems

y' = 2y + 4

Is

y = -2

a solution to the above equation?

g'(x) = 5g(x)

and

g(3) = 2

Solve the equation.

Maria and Lucia own land.

Lucia began with 11 hectares during the first month, and gained 5 more hectares each month.

Maria owned 6 hectares during the first one, and her land multiplied by a factor of

1.4

each month.

After which month will Maria's amount of land first exceed Lucia's amount of land?

Evaluate:

\log_4(4)

Does the function model exponential growth or decay?

j(x) = 3 \cdot 1.02^x

1-on-1 AI tutoring aligned to F-LE. 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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