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?

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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.

Missouri: Grade 4 Math Standards

38 standards · 5 domains

DATA AND STATISTICS

4.DS.A.1 Create a frequency table and/or line plot to display measurement data.
4.DS.A.2 Solve problems involving addition and subtraction by using information presented in a data display.
4.DS.A.3 Analyze the data in a frequency table, line plot, bar graph or picture graph.

GEOMETRY AND MEASUREMENT

4.GM.A.1 Draw and identify points, lines, line segments, rays, angles, perpendicular lines and parallel lines.
4.GM.A.2 Classify two-dimensional shapes by their sides and/or angles.
4.GM.A.3 Construct lines of symmetry for a two-dimensional figure.
4.GM.B.4 Identify and estimate angles and their measure.
4.GM.B.5 Draw and measure angles in whole-number degrees using a protractor.
4.GM.C.6 Know relative sizes of measurement units within one system of units.
4.GM.C.6a Convert measurements in a larger unit in terms of a smaller unit.
4.GM.C.7 Use the four operations to solve problems involving distances, intervals of time, liquid volume, weight of objects and money.
4.GM.C.8 Apply the area and perimeter formulas for rectangles to solve problems.

NUMBER SENSE AND OPERATIONS IN BASE TEN

4.NBT.A.1 Round multi-digit whole numbers to any place.
4.NBT.A.2 Read, write and identify multi-digit whole numbers up to one million using number names, base ten numerals and expanded form.
4.NBT.A.3 Compare two multi-digit numbers using the symbols >, = or <, and justify the solution.
4.NBT.A.4 Understand that in a multi-digit whole number, a digit represents 10 times what it would represents in the place to its right.
4.NBT.A.5 Demonstrate fluency with addition and subtraction of whole numbers.
4.NBT.A.6 Multiply a whole number of up to four digits by a one-digit whole number and multiply two two-digit numbers, and justify the solution.
4.NBT.A.7 Find whole-number quotients and remainders with up to four-digit dividends and one-digit divisors, and justify the solution.

NUMBER SENSE AND OPERATIONS IN FRACTIONS

4.NF.A.1 Explain and/or illustrate why two fractions are equivalent.
4.NF.A.2 Recognize and generate equivalent fractions.
4.NF.A.3 Compare two fractions using the symbols >, = or <, and justify the solution.
4.NF.B.4 Understand addition and subtraction of fractions as joining/composing and separating/decomposing parts referring to the same whole.
4.NF.B.5 Decompose a fraction into a sum of fractions with the same denominator and record each decomposition with an equation and justification.
4.NF.B.6 Solve problems involving adding and subtracting fractions and mixed numbers with like denominators.
4.NF.B.7 Apply and extend previous understandings of multiplication to multiply a fraction by a whole number.
4.NF.B.8 Solve problems involving multiplication of a fraction by a whole number.
4.NF.C.9 Use decimal notation for fractions with denominators of 10 or 100.
4.NF.C.10 Understand that fractions and decimals are equivalent representations of the same quantity.
4.NF.C.11 Read, write and identify decimals to the hundredths place using number names, base ten numerals and expanded form.
4.NF.C.12 Compare two decimals to the hundredths place using the symbols >, = or <, and justify the solution.

RELATIONSHIPS AND ALGEBRAIC THINKING

4.RA.A.1 Multiply or divide to solve problems involving a multiplicative comparison.
4.RA.A.2 Solve multi-step whole number problems involving the four operations and variables and using estimation to interpret the reasonableness of the answer.
4.RA.A.3 Solve whole number division problems involving variables in which remainders need to be interpreted, and justify the solution.
4.RA.B.4 Recognize that a whole number is a multiple of each of its factors and find the multiples for a given whole number.
4.RA.B.5 Determine if a whole number within 100 is composite or prime, and find all factor pairs for whole numbers within 100.
4.RA.C.6 Generate a number pattern that follows a given rule.
4.RA.C.7 Use words or mathematical symbols to express a rule for a given pattern.