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.

HS.A.1.g

Interpret logarithmic equations as exponential equations.

Example Problems

Evaluate:

\log_4(4)

Evaluate:

\log_9(1)

Evaluate:

\log_8(8)

Khan Academy Resources

Intro to logarithm properties Logarithm properties review Logarithm change of base rule intro Intro to Logarithms Solving exponential equations using logarithms Justifying the logarithm properties Evaluate logarithms (advanced)Evaluate logarithms Use the properties of logarithms Relationship between exponentials & logarithms Exponential model word problems Use the logarithm change of base rule Solve exponential equations using logarithms: base-2 and other bases Solve exponential equations using logarithms: base-10 and base-e Evaluate logarithms: change of base rule Intro to logarithms Evaluating logarithms (advanced)Proof of the logarithm change of base rule Proof of the logarithm product rule Proof of the logarithm quotient and power rules Intro to logarithm properties (1 of 2)Intro to logarithm properties (2 of 2)Evaluating logarithms: change of base rule Using the logarithmic product rule Evaluating natural logarithm with calculator Using the properties of logarithms: multiple steps Using the logarithmic power rule Relationship between exponentials & logarithms: graphs Solving exponential equations using logarithms: base-10 Relationship between exponentials & logarithms Using the logarithm change of base rule Solving exponential equations using logarithms: base-2 Relationship between exponentials & logarithms: tables Graphical relationship between 2ˣ and log₂(x)

1-on-1 AI tutoring aligned to HS.A.1.g. 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 →