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.

NC.5.NF.3.b

Model and interpret a fraction as the division of the numerator by the denominator.

Example Problems

Write the decimal form of:

29/3

Write the decimal form of:

\frac{4}{3}

Write the decimal form of:

\frac{19}{4}

Khan Academy Resources

Decimals in written form review Add fractions with unlike denominators Subtracting fractions with unlike denominators Add and subtract mixed numbers with unlike denominators (no regrouping)Dividing whole numbers by unit fractions Multiplying fractions Dividing unit fractions by whole numbers Multiply fractions word problems Fractions as division word problems Divide fractions and whole numbers word problems Fraction multiplication as scaling Decimals in written form Fractions as division Multiplying fractions with visuals Multiply fractions and whole numbers word problems Dividing whole numbers by unit fractions visually Area of rectangles with fraction side lengths Add and subtract mixed numbers with unlike denominators (regrouping)Multiply fractions and whole numbers Add and subtract fractions word problems Interpret multiplying fraction and whole number word problems Decimals in written form (hundredths)Multiplying 2 fractions: 5/6 x 2/3 Adding mixed numbers: 19 3/18 + 18 2/3 Subtracting mixed numbers: 7 6/9 - 3 2/5 Creating a fraction through division Multiplying unit fractions and whole numbers Decimals in written form (thousandths)Multiplying fractions word problem: movies Multiplying 2 fractions: fraction model Multiplying fractions word problem: bike Multiplying fractions and whole numbers visually Multiplying fractions word problem: milk Subtracting fractions with unlike denominators Fractions as division by power of 10 Multiplying 2 fractions: number line Adding fractions with unlike denominators Understanding fractions as division Multiplying fractions word problem: laundry Creating mixed numbers with fraction division

1-on-1 AI tutoring aligned to NC.5.NF.3.b. 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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