form 1 topics added

app/lessons/unit-6-number-system/place-value/page.tsx

@@ -0,0 +1,22 @@
+"use client";
+
+import { Breadcrumbs } from "@/components/layout/breadcrumbs";
+import { PlaceValueExplorer } from "@/components/explorers/place-value-explorer";
+
+export default function PlaceValuePage() {
+  return (
+    <div className="space-y-8">
+      <Breadcrumbs
+        items={[
+          { label: "Lessons", href: "/lessons" },
+          { label: "Unit 6: Number System", href: "/lessons/unit-6-number-system" },
+          { label: "Place Value" },
+        ]}
+      />
+
+      <h1 className="text-3xl font-bold tracking-tight">Denary Place Value (Base 10)</h1>
+
+      <PlaceValueExplorer />
+    </div>
+  );
+}