diff --git a/src/components/BoardSwitcher.jsx b/src/components/BoardSwitcher.jsx
index e99793a..4eee84b 100644
--- a/src/components/BoardSwitcher.jsx
+++ b/src/components/BoardSwitcher.jsx
@@ -1,4 +1,4 @@
-import React from "react";
+import React, { useState } from "react";
 
 function Board(props) {
   let className = "board";
@@ -6,20 +6,32 @@ function Board(props) {
     className += " selected";
   }
 
-  return <div className={className}>{props.index + 1}</div>;
+  return <div className={className}> {props.index + 1} </div>;
 }
 
 function BoardSwitcher(props) {
+
+  const [selectedBoardIndex, setSelectedBoardIndex] = useState(0);
+  const handleClick = (event) => {
+    if(selectedBoardIndex === props.numBoards - 1){ 
+      setSelectedBoardIndex(0);
+    }
+    else {
+      setSelectedBoardIndex(selectedBoardIndex + 1);
+    }
+
+}
+
   let boards = [];
-  for (let ii = 0; ii < props.numBoards; ii++) {
-    let isSelected = ii === 0;
-    boards.push(<Board index={ii} selected={isSelected} key={ii} />);
+  for (let boardIndex = 0; boardIndex < props.numBoards; boardIndex++) {
+    let isSelected = boardIndex === selectedBoardIndex;
+    boards.push(<Board index={boardIndex} selected={isSelected} key={boardIndex} />);
   }
 
   return (
     <div>
       <div className="boards">{boards}</div>
-      <button>Toggle</button>
+      <button onClick = {handleClick}>Toggle</button>
     </div>
   );
 }
diff --git a/src/main.jsx b/src/main.jsx
index 782f402..316ad56 100644
--- a/src/main.jsx
+++ b/src/main.jsx
@@ -6,6 +6,6 @@ import "./index.css";
 const root = ReactDOM.createRoot(document.getElementById("root"));
 root.render(
   <React.StrictMode>
-    <BoardSwitcher numBoards={3} />
+    <BoardSwitcher numBoards={5} />
   </React.StrictMode>
 );