diff --git a/packages/squiggle-lang/__tests__/Reducer/Reducer_TestHelpers.res b/packages/squiggle-lang/__tests__/Reducer/Reducer_TestHelpers.res
index 9a0e5436..0790c078 100644
--- a/packages/squiggle-lang/__tests__/Reducer/Reducer_TestHelpers.res
+++ b/packages/squiggle-lang/__tests__/Reducer/Reducer_TestHelpers.res
@@ -24,7 +24,7 @@ let expectEvalPartialBindingsToBe = (
   bindings: Reducer.externalBindings,
   answer: string,
 ) =>
-  Reducer.evaluatePartialWBindings(expr, bindings)
+  Reducer.evaluatePartialUsingExternalBindings(expr, bindings)
   ->ExpressionValue.toStringResultRecord
   ->expect
   ->toBe(answer)
diff --git a/packages/squiggle-lang/src/rescript/Reducer/Reducer.res b/packages/squiggle-lang/src/rescript/Reducer/Reducer.res
index 063d36c4..d2e4858f 100644
--- a/packages/squiggle-lang/src/rescript/Reducer/Reducer.res
+++ b/packages/squiggle-lang/src/rescript/Reducer/Reducer.res
@@ -9,7 +9,7 @@ type expressionValue = Reducer_Expression.expressionValue
 type externalBindings = Expression.externalBindings
 let evaluate = Expression.eval
 let evaluateUsingExternalBindings = Expression.evalUsingExternalBindings
-let evaluatePartialWBindings = Expression.evalPartialWBindings
+let evaluatePartialUsingExternalBindings = Expression.evalPartialUsingExternalBindings
 let parse = Expression.parse
 let parseOuter = Expression.parseOuter
 let parsePartial = Expression.parsePartial
diff --git a/packages/squiggle-lang/src/rescript/Reducer/Reducer.resi b/packages/squiggle-lang/src/rescript/Reducer/Reducer.resi
index fe1da462..8bbfc0b5 100644
--- a/packages/squiggle-lang/src/rescript/Reducer/Reducer.resi
+++ b/packages/squiggle-lang/src/rescript/Reducer/Reducer.resi
@@ -17,7 +17,7 @@ let evaluateUsingExternalBindings: (
   externalBindings,
 ) => result<expressionValue, Reducer_ErrorValue.errorValue>
 @genType
-let evaluatePartialWBindings: (
+let evaluatePartialUsingExternalBindings: (
   string,
   externalBindings,
 ) => result<externalBindings, Reducer_ErrorValue.errorValue>
diff --git a/packages/squiggle-lang/src/rescript/Reducer/Reducer_Expression/Reducer_Expression.res b/packages/squiggle-lang/src/rescript/Reducer/Reducer_Expression/Reducer_Expression.res
index bf22df71..68881496 100644
--- a/packages/squiggle-lang/src/rescript/Reducer/Reducer_Expression/Reducer_Expression.res
+++ b/packages/squiggle-lang/src/rescript/Reducer/Reducer_Expression/Reducer_Expression.res
@@ -124,7 +124,7 @@ let evalUsingExternalBindingsExpression_ = (aExpression, bindings): result<expre
   When bindings are used, the code is a partial code as if it is cut from a larger code.
   Therefore all statements are assignments.
 */
-let evalPartialWBindings_ = (codeText: string, bindings: T.bindings) => {
+let evalPartialUsingExternalBindings_ = (codeText: string, bindings: T.bindings) => {
   parsePartial(codeText)->Result.flatMap(expression =>
     expression->evalUsingExternalBindingsExpression_(bindings)
   )
@@ -169,12 +169,12 @@ let evalUsingExternalBindings = (code: string, externalBindings: externalBinding
   Evaluates code with external bindings. External bindings are a record of expression values.
   The code is a partial code as if it is cut from a larger code. Therefore all statments are assignments.
 */
-let evalPartialWBindings = (code: string, externalBindings: externalBindings): result<
+let evalPartialUsingExternalBindings = (code: string, externalBindings: externalBindings): result<
   externalBindings,
   'e,
 > => {
   let bindings = externalBindings->externalBindingsToBindings
-  let answer = evalPartialWBindings_(code, bindings)
+  let answer = evalPartialUsingExternalBindings_(code, bindings)
   answer->Result.flatMap(answer =>
     switch answer {
     | EvRecord(aRecord) => Ok(aRecord)