diff --git a/minitorch/tensor_ops.py b/minitorch/tensor_ops.py
index 2eb9a5d0..18ce67c1 100644
--- a/minitorch/tensor_ops.py
+++ b/minitorch/tensor_ops.py
@@ -71,7 +71,8 @@ def map(fn):
                should broadcast with `a`
 
     Returns:
-        :class:`TensorData` : new tensor data
+        function: A function that takes a tensor, applies `fn` to each cell,
+        and returns the resulting tensor.
     """
 
     f = tensor_map(fn)
@@ -160,7 +161,8 @@ def zip(fn):
         b (:class:`TensorData`): tensor to zip over
 
     Returns:
-        :class:`TensorData` : new tensor data
+        function: A function that takes two tensors, applies `fn` to each pair
+        of cells, and returns the resulting tensor.
     """
 
     f = tensor_zip(fn)
@@ -225,7 +227,9 @@ def reduce(fn, start=0.0):
         dim (int): int of dim to reduce
 
     Returns:
-        :class:`TensorData` : new tensor
+        function: A function that takes a tensor, applies `fn` to all cells
+        along a particular axis (or all cells if `dim` is not specified), and
+        returns the resulting tensor.
     """
     f = tensor_reduce(fn)